Electric Circuits When power factor angle is constant, then shape of the current locus is semi circle. straight line. circle. triangle. semi circle. straight line. circle. triangle. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Resistor stores the energy in the form of electrical field. None of these magnetic field. both A and B. electrical field. None of these magnetic field. both A and B. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Efficiency of electrical machines should be calculated by measuring losses. output and input. losses and output. losses and input. losses. output and input. losses and output. losses and input. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A parallel plate capacitor has a capacitance of C farad. It area of the plates is doubled and the distance between them is half, the capacitance of the capacitor is C Farad. 4C Farad. 2C Farad. 16C Farad. C Farad. 4C Farad. 2C Farad. 16C Farad. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 230V, 50Hz voltage is applied to a coil having L = 5H and R = 2 Ohm in series with capacitance C. When the voltage across the coil is 400V, find the value of C? 1.8 µF. 8.51 µF. 10.54 µF. 4.78 µF. 1.8 µF. 8.51 µF. 10.54 µF. 4.78 µF. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Four bulbs of 40 W each are connected in series with a battery across them, which of the following statement is true? None of these The power dissipation in each bulb is not same. The voltage across each bulb is not same. The current through each bulb is same. None of these The power dissipation in each bulb is not same. The voltage across each bulb is not same. The current through each bulb is same. ANSWER DOWNLOAD EXAMIANS APP
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