Electric Circuits Time constant of RC series circuit is RC 2L/R L/R 2RC RC 2L/R L/R 2RC ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The resistivity of semi-conductors at room temperatures is 1000 to 1500 ohm - cm. 0.01 to 50 ohm - cm. 1.6 × 106 to 100 × 106 ohm - cm. 109 to 1012 ohm - cm. 1000 to 1500 ohm - cm. 0.01 to 50 ohm - cm. 1.6 × 106 to 100 × 106 ohm - cm. 109 to 1012 ohm - cm. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of the followings is/are active element? Voltage source Both None of these. Current source Voltage source Both None of these. Current source ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 20 μF capacitor and 200 W, 220 V lamp is connected in series across a 220 V alternating supply. In which frequency of the supply the lamp will glow dimmest? 1 Hz. 1000 Hz. 10 Hz. 100 Hz. 1 Hz. 1000 Hz. 10 Hz. 100 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Four bulbs of 40 W each are connected in series with a battery across them, which of the following statement is true? The current through each bulb is same. The voltage across each bulb is not same. None of these The power dissipation in each bulb is not same. The current through each bulb is same. The voltage across each bulb is not same. None of these The power dissipation in each bulb is not same. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits You have to replace 1500 Ω resistor in radio. You have no 1500 Ω resistor but have several 1000 Ω ones which you would connect three in parallel. two in parallel and one in series. three in series. two in parallel. three in parallel. two in parallel and one in series. three in series. two in parallel. ANSWER DOWNLOAD EXAMIANS APP
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