LEVEL 2 MODULE 1 ALTERNATING CURRENTS
2025| BRAND NEW ACTUAL EXAM WITH 100%
VERIFIED QUESTIONS AND CORRECT
SOLUTIONS| GUARANTEED VALUE PACK| ACE
YOUR GRADES.
1. A device that uses electromagnetic induction to transfer
electrical energy from one circuit to another is a(n) - correct
answer - transformer
2. If a transformer has 200 turns in the primary, 100 turns in the
secondary, and 150VAC applied to the primary, the voltage
across the secondary is - correct answer - 75VAC
3. Transformers in which the primary and secondary voltages are
180 degrees out of phase are known as - correct answer -
unlike-wound transformers
4. Reactive power is always - correct answer - 90° out of phase
with true power
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5. If the time for one cycle is 0.1 second, the frequency is - correct
answer - 10Hz
6. If the phase angles of two sine waves are both 0 degrees, then
the waves - correct answer - are in phase
7. What is the true power in a 2A series RL circuit with a 100Ω
resistor? - correct answer - 400W
8. The opposing force that an inductor presents to the flow of
alternating current is called - correct answer - inductive
reactance
9. The power factor can be defined as the ratio of true power to -
correct answer - apparent power
10. In a circuit that has both capacitance and resistance, the
current will lead the voltage - correct answer - by some angle
between 0° and 90°