Electric Circuits According to duality principle a series inductor (L) can be represented as Series L. Parallel C. Series C. Parallel L. Series L. Parallel C. Series C. Parallel L. 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 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. initially. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The switch S is the circuit shown in figure is ideal. If the switch is repeatedly closed for 1 ms and opened for 1 ms, the average value of i(t) is 0.5 mA. 1 mA. 0.35 mA. 0.25 mA. 0.5 mA. 1 mA. 0.35 mA. 0.25 mA. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits When AC flows through a pure capacitance then the current leads the emf by 90o. is in phase with emf. lags the emf by 90o. leads the emf by - 90o. leads the emf by 90o. is in phase with emf. lags the emf by 90o. leads the emf by - 90o. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In a capacitor, the electrical energy is stored in none of above. magnetic field. both ‘electric field’ and magnetic field’. electric field. none of above. magnetic field. both ‘electric field’ and magnetic field’. electric field. 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 2C Farad. 4C Farad. 16C Farad. C Farad. 2C Farad. 4C Farad. 16C Farad. C Farad. ANSWER DOWNLOAD EXAMIANS APP
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