ALTERNATING CURRENTS MODULE 1 LEVEL 2 LATEST VERSION
2024-2025 QUESTIONS WITH CORRECT VERIFIED SOLUTIONS
ALREADY GRADED A+
Which of the following is true of the current in a capacitive circuit? -
ANSWER✔✔It leads the voltage .
In sine wave terminology, the average value is___. - ANSWER✔✔0.637 x
peak value
In AC circuits containing only resistance,___. - ANSWER✔✔All DC rules
and laws apply, including Ohm's law
If the area of the plates of a capacitor is increased, the amount of
capacitance___. - ANSWER✔✔Increases
The self-induced voltage across in inductance is equal to the change
in___. - ANSWER✔✔Current with respect to time
, Page 2 of 19
Given: A 30-microfarad capacitor in parallel with a 15-microfarad
capacitor. The total capacitance is___. - ANSWER✔✔45
Which of the following opposes any change in circuit current? -
ANSWER✔✔Inductance
"ELI the ICE MAN" is used to remember___. - ANSWER✔✔Phase
relationships that exist between voltage and current in an inductive
circuit
According to the power triangle, the apparent power is___. -
ANSWER✔✔Greater than the true power
Which of the following uses electromagnetic induction to transfer
electrical energy from one circuit to another? -
ANSWER✔✔Transformer
, Page 3 of 19
What is the step-down turns ratio of a transformer with 200 turns in the
primary and 100 turns in the secondary? - ANSWER✔✔2:1
Opening the secondary of a CT under load will cause a dangerous level
of___. - ANSWER✔✔induced high voltage
What is the hertz rating of an AC circuit if the frequency is 20 cycles per
1/2 second? - ANSWER✔✔40Hz
Given: A circuit has an rms voltage of 120VAC. What is the peak-to-peak
voltage? - ANSWER✔✔340V
A circuit has a peak voltage of 275V. What is the average voltage value?
- ANSWER✔✔175V
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