Electric Circuits For the circuit shown below the value of R is adjusted so as to make the current in RL equal to zero. Calculate the value of R. 2 Ω. 3 Ω. 4 Ω. 1 Ω. 2 Ω. 3 Ω. 4 Ω. 1 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits When 125 V is applied across a 250 V, 100 W filament incandescent bulbs, the power consumption is 100 W. 12.5 W. 25 W. 50 W. 100 W. 12.5 W. 25 W. 50 W. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Voltage magnification will occur in which of the following case? Both None of these Series resonance Parallel resonance Both None of these Series resonance Parallel resonance ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A current is said to be alternating when it changes in both ‘a’ and ‘b’. direction. none of these. magnitude. both ‘a’ and ‘b’. direction. none of these. magnitude. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is called the frequency in AC operation? No. of (-) ve quadrature made per second. No. of cycles made per second. No. of wave made per second. No. of (+) ve quadrature made per second. No. of (-) ve quadrature made per second. No. of cycles made per second. No. of wave made per second. No. of (+) ve quadrature made per second. 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? 1000 Hz. 100 Hz. 1 Hz. 10 Hz. 1000 Hz. 100 Hz. 1 Hz. 10 Hz. ANSWER DOWNLOAD EXAMIANS APP
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