Electric Circuits A external resistance R is connected to a cell of internal resistance r, then the current is maximum when None of these R < r. R = r. R > r. None of these R < r. R = r. R > r. 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. 50 V. 60 V. 20 V. 30 V. 50 V. 60 V. 20 V. 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. F. εr/F. F εr. 0. F. εr/F. F εr. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Instantaneous power in inductor is proportional to the square of the rate of change of current. product of the instantaneous current and rate of change of current. square of instantaneous current. temperature of the inductor. square of the rate of change of current. product of the instantaneous current and rate of change of current. square of instantaneous current. temperature of the inductor. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits One atomic mass unit ( amu ) is approximately equal to 1.6 × 10-27 Kg. 1.6 × 10-13 Kg. 1.6 × 10-24 Kg. 1.6 × 10-19 Kg. 1.6 × 10-27 Kg. 1.6 × 10-13 Kg. 1.6 × 10-24 Kg. 1.6 × 10-19 Kg. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits An AC voltage of 200 V at 50 Hz is applied to a coil which draws 5 A and dissipates 1000 W. The resistance and impedance of the coil respectively are 40 Ω and 200 Ω. 50 Ω and 200 Ω. 40 Ω and 40 Ω. 25 Ω and 5 Ω. 40 Ω and 200 Ω. 50 Ω and 200 Ω. 40 Ω and 40 Ω. 25 Ω and 5 Ω. ANSWER DOWNLOAD EXAMIANS APP
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