Electric Circuits A 20 μF capacitor and 200 W, 220 V lamp is connected in series across a 220 V alternating supply. In which frequency of the supply the lamp will glow dimmest? 1 Hz. 1000 Hz. 10 Hz. 100 Hz. 1 Hz. 1000 Hz. 10 Hz. 100 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The Norton equivalent of a network is given as IN = 4A and RN = 2 Ohm. When this circuit is connected across a 2 Ohm load, the current through the load is 0 A. 4 A. 2 A. 1 A. 0 A. 4 A. 2 A. 1 A. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A parallel plate capacitor with air as dielectric, force between plate is F. If capacitor is now immersed water of dielectric εr, force between plate will be – εr/F. F. 0. F εr. εr/F. F. 0. F εr. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Twelve 6 Ω resistor used as edge to form a cube. The resistance between two diagonally opposite corner of the cube is 6 / 5 Ω. 5 Ω. 6 Ω. 5 / 6 Ω. 6 / 5 Ω. 5 Ω. 6 Ω. 5 / 6 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Phase voltages of a star connected alternator are ER = 240∠0o V, EY = 240∠-120o V and EB = 240∠ + 120o V. What is the phase sequence of the system? RYB. BYR. YBR. RBY. RYB. BYR. YBR. RBY. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Current magnification will occur in which of the following case? Series resonance None of these Parallel resonance Both Series resonance None of these Parallel resonance Both ANSWER DOWNLOAD EXAMIANS APP
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