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+? dielectric losses increases. open circuit. short circuit. dielectric losses decreases. dielectric losses increases. open circuit. short circuit. dielectric losses decreases. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of the following characteristics is/are attributed to an ideal independent voltage source? Independent of the magnitude of voltage supplied. both ‘b’ and ‘d’. Independent of the direction of flow of current. Independent of magnitude of current supplied.. Independent of the magnitude of voltage supplied. both ‘b’ and ‘d’. Independent of the direction of flow of current. Independent of magnitude of current supplied.. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A voltage of v = 100 sin (wt + π/3) is applied to pure resistor of 30 Ohm. What is the RMS value of current is 4.71. 2.36. 1.92. 5.77. 4.71. 2.36. 1.92. 5.77. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In direct arc furnace which of following is of high value? Voltage. Current. Power factor. All of above. Voltage. Current. Power factor. All of above. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Under resonance condition the power factor of a system is unity leading lagging any of the above unity leading lagging any of the above ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Instantaneous power in inductor is proportional to the square of the rate of change of current. temperature of the inductor. square of instantaneous current. product of the instantaneous current and rate of change of current. square of the rate of change of current. temperature of the inductor. square of instantaneous current. product of the instantaneous current and rate of change of current. ANSWER DOWNLOAD EXAMIANS APP
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