IGCSE A Level Physics MCQs - Chapter 2

Alternating Current MCQ (Multiple Choice Questions) PDF - 2

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Alternating Current Questions & Answers PDF Download: MCQ Quiz 2

MCQ 6: Graph of alternating current is a

A) cos wave

B) tan wave

C) curve

D) sine wave

MCQ 7: A component that allows only unidirectional current to pass through it is

A) resistor

B) inductor

C) transformer

D) diode

MCQ 8: Average power dissipated in resistor if sinusoidal p.d of peak value 25 V is connected across a 20 Ω resistor is

A) 15.6 W

B) 15 W

C) 16 W

D) 17 W

MCQ 9: Amount of DC voltage as compare to V_o is

A) 50%

B) 60%

C) 70%

D) 80%

MCQ 10: A well designed transformer loses power under

A) 10%

B) 1.20%

C) 0.10%

D) 20%

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