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? 2.5 × 102 joules. 3 × 102 joules. 4 × 102 joules. 6 × 102 joules. 2.5 × 102 joules. 3 × 102 joules. 4 × 102 joules. 6 × 102 joules. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Resistance of which material does not change with change in temperature? Brass. Metal alloys constantan and manganin. Tungsten. Platinum. Brass. Metal alloys constantan and manganin. Tungsten. Platinum. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is called the frequency in AC operation? No. of wave made per second. No. of cycles made per second. No. of (-) ve quadrature made per second. No. of (+) ve quadrature made per second. No. of wave made per second. No. of cycles made per second. No. of (-) ve quadrature made per second. No. of (+) ve quadrature made per second. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Efficiency of electrical machines should be calculated by measuring losses. output and input. losses and input. losses and output. losses. output and input. losses and input. losses and output. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Three 3Ω resistors are connected to form a triangle. What is the resistance between any two of the corner? 9 Ω. 2 Ω. 6 Ω. 3 Ω. 9 Ω. 2 Ω. 6 Ω. 3 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In above question, determine the current if E = 100 V, R = 20Ω, R1 = 10 Ω and L = 2 H at 0.5 sec after short circuit. - 9.59. 9.59. 6.98. - 6.28. - 9.59. 9.59. 6.98. - 6.28. ANSWER DOWNLOAD EXAMIANS APP