Electric Circuits A capacitor carries a charge of 0.3 C at 20 V. Its capacitance is 0.015 F. 15 μF. 1.5 F. 1.5 μF. 0.015 F. 15 μF. 1.5 F. 1.5 μF. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 10 μF capacitor and 100 W, 220 V lamp is connected in series across a 220 V alternating supply. In which frequency of the supply the lamp will glow brightest? 1000 Hz. 10 Hz. 100 Hz. 1 Hz. 1000 Hz. 10 Hz. 100 Hz. 1 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits An ideal constant voltage source has _______________ internal impedance whereas a constant current source has ____________ internal impedance. infinite, zero infinite, infinite zero, infinite zero, zero infinite, zero infinite, infinite zero, infinite zero, zero ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of the followings is the expression for energy stored in a capacitor? C / v. Cv. (1 / 2) Cv2. C dv / dt. C / v. Cv. (1 / 2) Cv2. C dv / dt. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of the following are the passive elements? Both Resistor None of these. Bulb Both Resistor None of these. Bulb ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A capacitor has a capacitance of 6 μF. Calculate the stored energy in it if a DC voltage of 100 V, is applied across it? 4 × 102 joules. 6 × 102 joules. 2.5 × 102 joules. 3 × 102 joules. 4 × 102 joules. 6 × 102 joules. 2.5 × 102 joules. 3 × 102 joules. ANSWER DOWNLOAD EXAMIANS APP
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