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Electrical 2 module 1 Exam Questions And Correct Answers

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Electrical 2 module 1 Exam Questions And Correct Answers The hertz rating of a ac circuit is __ if the frequency is 20 cycles per 1/2 second - answer40 hertz A circuit has an rms voltage of 120vac, the peak voltage is? - answer170v The turns ratio of a transformer with 200 turns into primary a...

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  • August 28, 2024
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  • Electrical
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©THEBRIGHT EXAM STUDY SOLUTIONS 8/26/2024 11:32 AM




Electrical 2 module 1 Exam Questions And
Correct Answers

The hertz rating of a ac circuit is __ if the frequency is 20 cycles per 1/2 second - answer✔✔40
hertz

A circuit has an rms voltage of 120vac, the peak voltage is? - answer✔✔170v
The turns ratio of a transformer with 200 turns into primary and 100 turns in the secondary is __
- answer✔✔2:1
Opening the secondary of a CT (current transformer) underload will cause? -
answer✔✔Dangerously high voltages
A circuit has a peak voltage of 275 V the average voltage is. How do you get that? -
answer✔✔175.175v. 275x.637

Three equal capacitors in series has __ of the applied voltage - answer✔✔1/3

The formula for inductive reactance is - answer✔✔X(L) =2(pie)(f)(l)

Current an inductive circuit __ the voltage - answer✔✔Lags behind
The current an AC circuit With resistance only is __. the circuit has a resistance of 15 ohms and
a voltage of 150 V - answer✔✔10 amps

The calculations in AC circuits are done using __ unless stated otherwise - answer✔✔Effective
voltage value

Capacitive reactance __ when Frequency increases - answer✔✔Decreases

The current in a capacitive of circuit __ the voltage - answer✔✔Leads

The average value of a AC sine wave is __ times the peak value - answer✔✔0.637
All DC rules and laws including Ohms law apply in AC circuits containing only __ -
answer✔✔Resistance

To increase the capacitance of a capacitor __ the area of plates - answer✔✔Increase

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