Electric Circuits The resistivity of semi-conductors at room temperatures is 1000 to 1500 ohm - cm. 1.6 × 106 to 100 × 106 ohm - cm. 109 to 1012 ohm - cm. 0.01 to 50 ohm - cm. 1000 to 1500 ohm - cm. 1.6 × 106 to 100 × 106 ohm - cm. 109 to 1012 ohm - cm. 0.01 to 50 ohm - cm. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The resistance of 100 W, 200 V lamp is 800 Ω. 1600 Ω. 400 Ω. 200 Ω. 800 Ω. 1600 Ω. 400 Ω. 200 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of the following has least resistivity? Aluminium. Mercury. Lead. Copper. Aluminium. Mercury. Lead. Copper. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The capacitive reactance of a capacitor of (1 / 2μF) F at 103 Hz is 10 6 μF. 10- 6 μF. 10- 3 μF. 10 3 μF. 10 6 μF. 10- 6 μF. 10- 3 μF. 10 3 μF. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 10 μF capacitor and 100 W, 220 V lamp is connected in series across a 220 V alternating supply. In which frequency of the supply the lamp will glow brightest? 1000 Hz. 1 Hz. 100 Hz. 10 Hz. 1000 Hz. 1 Hz. 100 Hz. 10 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A balanced 3 - φ star connected load is fed from a 208 V, 3 - φ supply. Each load has resistance of 35 Ω. The total power is 618 W. 1236 W. 411.3 W. none of these. 618 W. 1236 W. 411.3 W. none of these. ANSWER DOWNLOAD EXAMIANS APP
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