Electric Circuits A capacitor passes a current of 12.6 mA when supplied with 20 V ac with a frequency of 1000 Hz. The capacitance will be 0.01 μF. 1 μF. 0.1 μF. 0.001 μF. 0.01 μF. 1 μF. 0.1 μF. 0.001 μF. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A network contains linear resistors and ideal voltage sources. If values of all the resistors are doubled, then voltage across each resistor is halved. increase by two times. doubled. remain same. halved. increase by two times. doubled. remain same. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 10Ω resistor is stretched to increase its length double. Its resistance will now be 40 Ω. 10 Ω. 20 Ω. 5 Ω. 40 Ω. 10 Ω. 20 Ω. 5 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A parallel plate capacitor with air as dielectric, force between plate is F. If capacitor is now immersed water of dielectric εr, force between plate will be – F. εr/F. 0. F εr. F. εr/F. 0. F εr. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The energy stored by a capacitor is given by 1/2 QV. Q2 / 2C. all of them. 1/2 CV2. 1/2 QV. Q2 / 2C. all of them. 1/2 CV2. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits An AC voltage of 200 V at 50 Hz is applied to a coil which draws 5 A and dissipates 1000 W. The resistance and impedance of the coil respectively are 40 Ω and 200 Ω. 25 Ω and 5 Ω. 50 Ω and 200 Ω. 40 Ω and 40 Ω. 40 Ω and 200 Ω. 25 Ω and 5 Ω. 50 Ω and 200 Ω. 40 Ω and 40 Ω. ANSWER DOWNLOAD EXAMIANS APP
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