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+? short circuit. dielectric losses increases. dielectric losses decreases. open circuit. short circuit. dielectric losses increases. dielectric losses decreases. open circuit. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Three capacitors each of capacity C are given. The resultant capacity (2/3) C can obtained by using them two in parallel and third in series with this combination. all in series. all in parallel. two in series and third in parallel across this combination. two in parallel and third in series with this combination. all in series. all in parallel. two in series and third in parallel across this combination. 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 – 0. εr/F. F εr. F. 0. εr/F. F εr. F. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is the dielectric material used in precision small value capacitor and capacitor used in radio frequency circuits? Glass. Titanium oxide. Oil impregnated paper. Vacuum, air. Glass. Titanium oxide. Oil impregnated paper. Vacuum, air. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 10 Ohm resistor has power rating of 1W. Find the maximum current rating. 0.316 A. 0.01 A. 0.1 A. 1 A. 0.316 A. 0.01 A. 0.1 A. 1 A. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A capacitor having a capacitance of 40 μF is connected across 250 V DC source. The charging current will be least when capacitor is almost 25% charged. when capacitor is half charged. initially. when capacitor is fully charged. when capacitor is almost 25% charged. when capacitor is half charged. initially. when capacitor is fully charged. ANSWER DOWNLOAD EXAMIANS APP
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