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46.
Graph of alternating current is a
- A.cos wave
- B.tan wave
- C.curve
- D.sine wave
- Answer & Explanation
- Report
Answer : [D]
Explanation :
Explanation :
47.
component that allows only unidirectional current to pass through it is
- A.resistor
- B.inductor
- C.transformer
- D.diode
- Answer & Explanation
- Report
Answer : [D]
Explanation :
Explanation :
48.
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
- Answer & Explanation
- Report
Answer : [A]
Explanation :
Explanation :
49.
Amount of d.c voltage as compare to Vo is
- A.50%
- B.60%
- C.70%
- D.80%
- Answer & Explanation
- Report
Answer : [C]
Explanation :
Explanation :
50.
A well designed transformer loses power under
- A.10%
- B.1.20%
- C.0.1%
- D.20%
- Answer & Explanation
- Report
Answer : [C]
Explanation :
Explanation :
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