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 – 0. F εr. F. εr/F. 0. F εr. F. εr/F. 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? 100 Hz. 1000 Hz. 10 Hz. 1 Hz. 100 Hz. 1000 Hz. 10 Hz. 1 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Internal heating of a capacitor is usually attributed to leakage resistance. dielectric charge. electron movement. plate vibration. leakage resistance. dielectric charge. electron movement. plate vibration. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits For closer tolerance which of the following capacitors is usually preferred? Mica capacitor. Paper capacitor. None of them. Ceramic disc capacitor. Mica capacitor. Paper capacitor. None of them. Ceramic disc capacitor. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Three parallel resistive branches are connected across a DC supply. The ratio of the branch resistances are given as R1:R2:R3 :: 2:4:6. The ratio of the branch currents is 6:3:2. 2:4:6. 2:3:6. 6:4:2. 6:3:2. 2:4:6. 2:3:6. 6:4:2. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If N is the number of nodes and b is the number of branches in a network, then rank of tie set matrix is b - N + 1. N. N - 1. b - N - 1. b - N + 1. N. N - 1. b - N - 1. ANSWER DOWNLOAD EXAMIANS APP
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