Engineering

Engineering Questions? Ask an Engineer for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

My son is building a Tesla Coil for a school project and…

Customer Question
My son is building a...
My son is building a Tesla Coil for a school project and something in the circuit is not operating correctly. We are using a 12v 1.5A adapter and the power appears to be correct to the primary coil, roughly 12v. The secondary coil however is showing very little and that comes off the breadboard, which I assume is where the problem is.Here is the layout: http://www.instructables.com/id/Easy-Tesla-Coil/If you Understand the Tesla Coil and the circuits needed to make it work, I'd appreciate some assistance in getting this thing working.
Submitted: 3 months ago.Category: Engineering
Show More
Show Less
Ask Your Own Engineering Question
Answered in 4 hours by:
3/26/2018
Engineer: Russell H., Service Tech replied 3 months ago
Russell H.
Russell H., Service Tech
Category: Engineering
Satisfied Customers: 12,741
Experience: 8+ years of professional experience
Verified

Hi, thank you for contacting JustAnswer.com. My name is***** will do my best to provide the right answer to your breadboarded circuitry question.

Ask Your Own Engineering Question
Engineer: Russell H., Service Tech replied 3 months ago

From my experience with breadboarding of any circuitry, when any uncertainty is involved, one needs to power Off the whole thing, wait a bit for voltage to dissipate, say 10 minutes where a high-voltage coil like that is concerned... then, apply a voltmeter set to Ohms or to Resistance to checking all connections, basically.

Now, clips such as those can often have cold solder joints inside the colored rubber clip cover. Or the solder joint can crack. So I suggest first checking all clips for good conductivity!

And other wires leading to the secondary coil also... check them for good connections.

After that... tell me what the secondary coil is not showing much of... measured how... and I will advise you more specifically.

If this answers your question, please rate my answer. A five-star rating would be appreciated!

If you need more info, or have any comments, use Reply To Expert to respond.

Thanks.

Ask Your Own Engineering Question
Customer reply replied 3 months ago
The primary coil show 12V, the secondary coil show .10V.All the connections are fine
Customer reply replied 3 months ago
Any response? I needed this yesterday, which is why I paid extra for, "need answer now".
Engineer: Russell H., Service Tech replied 3 months ago

I'm sorry - I work late in the Eastern Time Zone, and get to work somewhat late on Mondays.

According to the schematic, one end of the secondary coil is left 'free', unattached. So it should only have a slight, inductively induced, voltage on it.

Is anything wrong with the way the circuit is behaving?

Ask Your Own Engineering Question
Customer reply replied 3 months ago
The secondary coil attaches to the breadboard on the bottom and the top of the metal "roof" at the top.I don't know how the circuit should behave,I just followed the instructions, built this, and hoped it would power a florescent bulb, which it doesn't.
Engineer: Russell H., Service Tech replied 3 months ago

I see. The metal 'roof' - what metal is it made of? and is the connection of the secondary coil an electrical-quality connection?

Ask Your Own Engineering Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with an engineerLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Russell H. Your Own Question
Russell H.
Russell H.
Russell H., Service Tech
Category: Engineering
Satisfied Customers: 12,741
12,741 Satisfied Customers
Experience: 8+ years of professional experience

Russell H. is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

walkereng

walkereng

Bachelor's Degree

179 satisfied customers

Over 30 years of comprehensive experience

Matt

Matt

Engineer

46 satisfied customers

Mechanical Engineering Hons degree, been working in automotive industry for the last 18 years - Engine development engineer

StructuralEng

StructuralEng

Bachelor's Degree

171 satisfied customers

Engineering Expert

ibosley

ibosley

Master's Degree

88 satisfied customers

Mechanical Engineering

vgdlpc

vgdlpc

Master's Degree

17 satisfied customers

Civil Engineer, Major in Structures and Foundations. Professional Engineer 11 years of experience.

Ellen

Ellen

Consultant

109 satisfied customers

attorney and legal researcher

P. Simmons

P. Simmons

Attorney

150 satisfied customers

45 years old, retired Marine Officer, current attorney

< Previous | Next >

Related Engineering Questions
Could a series ofhot air balloons carry a conveyor belt 1000
Could a series of(###) ###-####hot air balloons carry a conveyor belt 1000 feet in the air to stack dirt 1,000 feet high? Provided all conditions were right. Tension wires on the balloons to hold them… read more
William Purpura
William Purpura
Managing General Partner
Masters in Business Administration
11 satisfied customers
Have you heard of using dams to store compressed air energy
Have you heard of using dams to store compressed air energy into tanks by dropping large amounts of water onto a large steel plate in area and having it fall like a piston? Air under the plate would b… read more
William Purpura
William Purpura
Managing General Partner
Masters in Business Administration
11 satisfied customers
Hi, Id like to build something similar to (but much smaller
Hi, I'd like to build something similar to (but much smaller of course) to CyberTron from the Transformers... realistically, as a normal human being with only an 8 year old son to help me out, and not… read more
Martin
Martin
Electrical engineer
Bachelor's Degree
486 satisfied customers
Ladies and Gents I have an earth works cut and fill questionI
Ladies and Gents I have an earth works cut and fill question I want to calculate the amount of earth works required from a grid of levels to cut/fill a field and level it to construct a soccer field. … read more
Expert
Expert
I'm curious to know if you can answer my Q's about
Hello, I'm curious to know if you can answer my Q's about woodworking and manufacturing CAD programs and using 3D printers and finding specific libraries or lead me to another path?… read more
Pete
Pete
Engineer
Bachelor\u0027s Degree
1,130 satisfied customers
We have a wall shelf that opens up when 2 magnetic keys
Hi, We have a wall shelf that opens up when 2 magnetic keys are placed over the locks on the bottom of the shelf. (I can show it to you). When the keys are placed over the locks ... they unlock ... an… read more
Matt
Matt
Engineer
Bachelor's Degree
46 satisfied customers
Part of the second floor of my home is on a 3' cantilever over
Part of the second floor of my home is on a 3' cantilever over my garage. I am getting some sagging and want to reinforce the area and want to know what options might work. Can I double the joists in … read more
StructuralEng
StructuralEng
Bachelor's Degree
Bachelor's Degree
171 satisfied customers
can I have answers to all the questions on this link? htt
can I have answers to all the questions on this link? http://www.justanswer.com/engineering/7pgv5-hi-there-how-require-answer-8-9-basic.html… read more
StructuralEng
StructuralEng
Bachelor's Degree
Bachelor's Degree
171 satisfied customers
How many 11.1/2 LVLs are needed to create a beam to support
How many 11.1/2 LVLs are needed to create a beam to support a future second floor. The center beam will span 22 feet with the carried span of 20 feet.… read more
StructuralEng
StructuralEng
Bachelor's Degree
Bachelor's Degree
171 satisfied customers
Who builds roads in states? I am aware that the state government
Who builds roads in states? I am aware that the state government funds it from our tax money, but who does the actual work? Are they private contractors? Is the information about the builder available… read more
walkereng
walkereng
Bachelor's Degree
Bachelor's Degree
179 satisfied customers
I am opening up a living area that was a large living room
I am opening up a living area that was a large living room on one side and a dining room and kitchen on the other side. The roof is hipped and uses rafter and a ridge. the ceiling joist span the depth… read more
walkereng
walkereng
Bachelor's Degree
Bachelor's Degree
179 satisfied customers
What is the ideal size and class of rock recommended
What is the ideal size and class of rock recommended for filling a river bank to retain and support topsoil layer for a wharf project?… read more
walkereng
walkereng
Bachelor's Degree
Bachelor's Degree
179 satisfied customers
, Is it hard to become an engineer? How long does it take?
, Is it hard to become an engineer? How long does it take? How much does school cost? Are jobs enjoyable, stressful, exciting?… read more
StructuralEng
StructuralEng
Bachelor's Degree
Bachelor's Degree
171 satisfied customers
I need to find out if a drive-up window is engineered correctly
I need to find out if a drive-up window is engineered correctly and how to prove it is not if that is the case. Can you help?… read more
walkereng
walkereng
Bachelor's Degree
Bachelor's Degree
179 satisfied customers
I need help with the sizing of a syphon system to move water
I need help with the sizing of a syphon system to move water into and out of a concrete tank used as a heat bank in my home. I thought I posted this question this morning but can't see any record of i… read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I want to build a very simple bridge in the woods to get over
I want to build a very simple bridge in the woods to get over a natural stream. The span has to be ~22 ft. The plan is to use two runs of three 2x8x8s overlapping 2' with 3 1/2"x5 carriage bolts + nai… read more
StructuralEng
StructuralEng
Bachelor's Degree
Bachelor's Degree
171 satisfied customers
I live in east Tennessee. There is a great deal of slope to
I live in east Tennessee. There is a great deal of slope to my lot. I want to enclose my patio which has a existing cover over it. I have installed a couple of drains to direct the water from downspou… read more
walkereng
walkereng
Bachelor's Degree
Bachelor's Degree
179 satisfied customers
Hi there. I want to build a Tesla coil at home, I am aware
Hi there. I want to build a Tesla coil at home, I am aware of the basic theory and the necessary safety precautions, however easy access to an NST is not something I do have. I have a transformer from… read more
ibosley
ibosley
Master's Degree
88 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x