Electric Circuits A variable capacitance is one whose capacitance changes with voltage. changes with temperature. changes with time. can be changed manually or by mechanical force. changes with voltage. changes with temperature. changes with time. can be changed manually or by mechanical force. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In RL series circuit R=2Ω and L=2mH. What is the value of time constant? 100sec 4msec 1msec 2msec 100sec 4msec 1msec 2msec ANSWER DOWNLOAD EXAMIANS APP
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 fully charged. when capacitor is half charged. when capacitor is almost 25% charged. initially. when capacitor is fully charged. when capacitor is half charged. when capacitor is almost 25% charged. 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 40 Ω. 40 Ω and 200 Ω. 50 Ω and 200 Ω. 25 Ω and 5 Ω. 40 Ω and 40 Ω. 40 Ω and 200 Ω. 50 Ω and 200 Ω. 25 Ω and 5 Ω. 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 none of these. 1236 W. 618 W. 411.3 W. none of these. 1236 W. 618 W. 411.3 W. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits To reduce hysteresis loss, we use soft-iron. CRGO steel. laminated sheets. copper bars. soft-iron. CRGO steel. laminated sheets. copper bars. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS