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1. The total number of AC cycles completed in one second is
1. The total number of AC cycles completed in one second is the current's A. alteration B. timing C. phase D. frequency 2. What is the real power (rounded) of a balanced, three-phase, Y-connected syst… read more
Expert
Expert
I'm trying to make my own battery powered lamp but I don't
I'm trying to make my own battery powered lamp but I don't what voltage battery I need for a 3W bulb. I tried 2 AA and one 9 volt but neither one works … read more
Mike R.
Mike R.
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Im ***** *****...not sure you can help me..... , Its an
Customer: Im ***** *****...not sure you can help me..... … read more
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Few weeks, my earth leakage circuit breaker has been
For past few weeks, my earth leakage circuit breaker has been tripping frequently during every early evening and night. Have had the breaker replaced, but problem still remains. Breaker is fine during… read more
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Michael
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i am trying to hook a dc motor to ac power. the motor is 12
i am trying to hook a dc motor to ac power. the motor is 12 volt 12 amp. i have 2 direction i can go. bridge rectifier and capicator or dc motor controller. i have been looking at dc motor controllers… read more
Jason
Jason
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I am moving from Ireland to the USA and have purchased all
I am moving from Ireland to the USA and have purchased all the usual electrical appliances over here to include a deep freeze, microwave, washing machine, lamps, computer/printer, etc. If I buy conver… read more
Phil
Phil
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I have a similar dilemma. I have a 24 Volt DC winch. That consumes
I have a similar dilemma. I have a 24 Volt DC winch. That consumes 250 amps at its peak performance. I need to use this in the field without a car (due to limited space). I have proposed two solutions… read more
Kevin
Kevin
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Diploma
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If I connect an amp meter to an AC current, would I measure
If I connect an amp meter to an AC current, would I measure anything? I would assume not because amp meters measure DC rather than AC current, but why can you please confirm this and explain to me why… read more
Mike G.
Mike G.
Master Electrician
Vocational, Technical or Trade Scho
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i have recently moved in new hyde park new york area. I noticed
i have recently moved in new hyde park new york area. I noticed that voltage fluctuation is continuous and power in the lights go dim and bright when applicances kick in - is it a supply problem or it… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
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I am looking for a product to control AC current flow in one
I am looking for a product to control AC current flow in one direction only so must have back flow protection. Current is 220v split phase 50hz (L1 x 110 L2 x 110 + N) and 100amp supply. Can anyone he… read more
Steve G.
Steve G.
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Im working on a project and need to send two electrical pulses
I'm working on a project and need to send two electrical pulses to a device. I need to send a 12v 22amp pulse and a high volt (40k volts) low amp pulse. I need to alternate the pulses. I have pulse wi… read more
Phil
Phil
Consultant to Engrs, Govt & Contractors
Degree, Mech Engr Technology
9,970 satisfied customers
Hello, I am in Japan where the power is a little different
Hello, I am in Japan where the power is a little different (100v 60 hz usually) and was thinking of importing a C12RSH Hitachi Miter saw from the USA. Based on the pictures and specs (especially the R… read more
DrSpark1
DrSpark1
Retired Master Electrician
Vocational, Technical or Trade Scho
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Our garage has an entry into the house near our kitchen. There
Our garage has an entry into the house near our kitchen. There is a bathroom there too. Lately the GFI outlet in the bathroom has tripped when the garage door opener is operated. We thought maybe the … read more
Will
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Hello Can anyone tell me if pushing a quick-set button (30
Hello: Can anyone tell me if pushing a quick-set button (30 secs) on a small microwave oven that causes the machine to immediately shut down means the microwave oven is faulty and should not be run ag… read more
Craig
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Hi Sir Sparks. To continue where we left off yesterday re
Hi Sir Sparks. To continue where we left off yesterday re order(NNN) NNN-NNNN80, I am now looking for a changeover latching relay to handle both the DC circuit and the AC circuit. My thoughts were tha… read more
Sir Sparks
Sir Sparks
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State & UK Certified Master electri
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I want to do electrical experiments using an automotive coil.
I want to do electrical experiments using an automotive coil. I need to reduce the coil voltage from 30K volts at 0.65 Amps down to 250 volts. I can't find the size, length or number of turns needed t… read more
Rich
Rich
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Vocational, Technical or Trade Scho
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I am looking at a 50kw pto generator that I can use with my
I am looking at a 50kw pto generator that I can use with my tractor. If the pto idle on my tractor sometimes goes really slow and I am just using the generator to run a backup (pre-heating) water heat… read more
Paul
Paul
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Vocational, Technical or Trade Scho
799 satisfied customers
Is there an electronic device that will allow a dc circuit
Is there an electronic device that will allow a dc circuit to pull more amps than whats available . for example , I need to get say 150 amps out of say an available 80 amps. Remember I'M talking DC. I… read more
Paul
Paul
Owner
Vocational, Technical or Trade Scho
799 satisfied customers
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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.

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