Electric Circuits A circuit with resistor, inductor, capacitor in series is resonant of 50 Hz. If all the values are now doubled, the new resonant frequency is f0 / 4. still f0. f0 / 2. 2f0. f0 / 4. still f0. f0 / 2. 2f0. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The voltage across the 1kΩ resistor between the nodes A and B of the network shown in the given figure is -1 V. 2 V. -2 V. 1 V. -1 V. 2 V. -2 V. 1 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In the given figure, the Thevenins equivalent voltage and impedance as seen from the terminals P - Q is given by 2 V and 5 Ω. 4 V and 5 Ω. 4 V and 7.5 Ω. 2 V and 7.5 Ω. 2 V and 5 Ω. 4 V and 5 Ω. 4 V and 7.5 Ω. 2 V and 7.5 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A series RLC circuit is connected across a 240V, 50 Hz supply. When the voltage across capacitor is 250V, a maximum current of 0.5A flows in the circuit. Find the inductance. 0.47 µF. 2.25 µF. 1.58 µF. 6.37 µF. 0.47 µF. 2.25 µF. 1.58 µF. 6.37 µF. 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? YBR. RYB. RBY. BYR. YBR. RYB. RBY. BYR. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In question no.3, which of the following is true ? None of these. i(0+)= iL(0+). iL(0) = ic (0). ic (0+) = i(0+). None of these. i(0+)= iL(0+). iL(0) = ic (0). ic (0+) = i(0+). ANSWER DOWNLOAD EXAMIANS APP
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