Electric Circuits A capacitor having a capacitance of 40 μF is connected across 250 V DC source. The charging current will be least initially. when capacitor is almost 25% charged. when capacitor is fully charged. when capacitor is half charged. initially. when capacitor is almost 25% charged. when capacitor is fully charged. when capacitor is half charged. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What will be the rms value of rectangular wave with amplitude 10 V? 5√2 V. 7.7 V. 11.2 V. 10 V. 5√2 V. 7.7 V. 11.2 V. 10 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits When power factor angle is constant, then shape of the current locus is circle. triangle. straight line. semi circle. circle. triangle. straight line. semi circle. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 35 V source is connected to a series circuit of 600 Ω and R as shown. If a voltmeter of internal resistance 1.2 kΩ is connected across 600 Ω resistor, it reads 5 V. The value of R is 2.4 k Ω. 1.2 k Ω. 7.2 k Ω. 3.6 k Ω. 2.4 k Ω. 1.2 k Ω. 7.2 k Ω. 3.6 k Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which material has extremely large resistance? Insulator None of these Semiconductor Conductor Insulator None of these Semiconductor Conductor ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In RLC series circuit R = 2Ω, L = 2mH and C = 1μF. Find the time constant of the circuit? 2 msec 1 μsec 4 msec 2 μsec 2 msec 1 μsec 4 msec 2 μsec ANSWER DOWNLOAD EXAMIANS APP
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