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? 4 × 102 joules. 3 × 102 joules. 2.5 × 102 joules. 6 × 102 joules. 4 × 102 joules. 3 × 102 joules. 2.5 × 102 joules. 6 × 102 joules. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A capacitor of 50 microfarad is connected in series with a resistance of 120 Ω. If above circuit is connected across 240 V, 50 Hz 1 - φ supply. Find the capacitive reactance? 63.7 Ω. 135.86 Ω. 1.765 Ω. 0.015 Ω. 63.7 Ω. 135.86 Ω. 1.765 Ω. 0.015 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of the following elements is/are called dynamic element/s? R. C. L. Both L and C. R. C. L. Both L and C. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A current in a circuit is given by, If the current flows through the 5 Ω resistor, find power dissipated at t = 0? 40 Watts. 20 Watts. 15 Watts. 10 Watts. 40 Watts. 20 Watts. 15 Watts. 10 Watts. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Image impedance can be written by using short circuit impedance(Zsc)and open circuit impedance(Zoc) as Zsc+Zoc Zsc/Zoc (Zsc . Zoc)½ Zsc-Zoc Zsc+Zoc Zsc/Zoc (Zsc . Zoc)½ Zsc-Zoc ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Two resistances R1 and R2 give combined resistances 4.5 Ω and 1 Ω when they are connected in series and parallel respectively. What would be the values of these resistances? 1.5 Ω and 3 Ω. 3 Ω and 9 Ω. 6 Ω and 9 Ω. 3 Ω and 6 Ω. 1.5 Ω and 3 Ω. 3 Ω and 9 Ω. 6 Ω and 9 Ω. 3 Ω and 6 Ω. ANSWER DOWNLOAD EXAMIANS APP
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