Electric Circuits A capacitor is connected to supply with switch and the switch is connected between capacitor and supply. Initially switch is open at time zero, and then switch is closed. Then how capacitor behaves at time t = 0+? open circuit. dielectric losses increases. dielectric losses decreases. short circuit. open circuit. dielectric losses increases. dielectric losses decreases. short circuit. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Consider the following circuit. In this circuit, when Vs = 3 V, I = 4 A, what is the value of I when Vs = 12 V? 7 A. 20 A. 15 A. 10 A. 7 A. 20 A. 15 A. 10 A. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Two point charges of 4μC are placed at a distance of 3 cm apart from each other in free space. Force acting on two charges will be 400 N 160 N 100 N 0.02 N 400 N 160 N 100 N 0.02 N ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If P is the power of a star connected system then what will be power of an equivalent delta connected system? P/3 P 3P None of these P/3 P 3P None of these ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Four capacitors each of 40 µF are connected in parallel, the equivalent capacitance of the system will be 10 µF 40 µF 160 µF 5 µF 10 µF 40 µF 160 µF 5 µF ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 50 μF capacitor is charged to retain 10 MJ of energy by a constant charging current of 1 A. Determine the voltages across the capacitor? 30 V. 60 V. 20 V. 50 V. 30 V. 60 V. 20 V. 50 V. ANSWER DOWNLOAD EXAMIANS APP
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