Electric Circuits The rms value of the voltage U(t)= 3 + 4cos(3t) 4.123 V. {3 + 2(1.141)} V. 7 V. 5 V. 4.123 V. {3 + 2(1.141)} V. 7 V. 5 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of the followings is/are active element? Current source None of these. Voltage source Both Current source None of these. Voltage source Both ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A coil of negligible resistance has an induction of 100 mH. The current passing through the coil changes from 2 A to 4 A at a uniform rate in 0.1 sec the voltage across the coil during this time would be __________ V. 36 8 2 50 36 8 2 50 ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The current through the 2 KΩ resistance ( rest resitances are all 1 ohm each ) in the circuit shown in diagram 2 mA. 0 mA. 1 mA. 6 mA. 2 mA. 0 mA. 1 mA. 6 mA. 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 50 Ω and 200 Ω. 40 Ω and 200 Ω. 25 Ω and 5 Ω. 40 Ω and 40 Ω. 50 Ω and 200 Ω. 40 Ω and 200 Ω. 25 Ω and 5 Ω. 40 Ω and 40 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Energy efficiency during electroplating is usually in the range 85 to 90%. 80 to 85%. 50 to 80%. 90 to 99%. 85 to 90%. 80 to 85%. 50 to 80%. 90 to 99%. ANSWER DOWNLOAD EXAMIANS APP
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