Electric Circuits A capacitor has a capacitance of 6 μF. Calculate the stored energy in it if a DC voltage of 100 V, is applied across it? 6 × 102 joules. 3 × 102 joules. 2.5 × 102 joules. 4 × 102 joules. 6 × 102 joules. 3 × 102 joules. 2.5 × 102 joules. 4 × 102 joules. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is the frequency of domestic power in India? 50 Hz. 220 Hz. 70 Hz. 60 Hz. 50 Hz. 220 Hz. 70 Hz. 60 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Whenever current is supplied by a source its terminal voltage increases exponentially. remains constant. increases. decreases. increases exponentially. remains constant. increases. decreases. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In which of the following oscillations are not present? Over damping Critical damping Under damping Both 2 and 3 Over damping Critical damping Under damping Both 2 and 3 ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Energy efficiency during electroplating is usually in the range 80 to 85%. 50 to 80%. 90 to 99%. 85 to 90%. 80 to 85%. 50 to 80%. 90 to 99%. 85 to 90%. 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. 25 Ω and 5 Ω. 40 Ω and 40 Ω. 50 Ω and 200 Ω. 40 Ω and 200 Ω. 25 Ω and 5 Ω. 40 Ω and 40 Ω. 50 Ω and 200 Ω. ANSWER DOWNLOAD EXAMIANS APP