Electric Circuits The rms value of sine wave is 100 A. Its peak value is 70.7 A. 282.8 A. 150 A. 141.4 A. 70.7 A. 282.8 A. 150 A. 141.4 A. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is the real power in AC operation? VIcosφ. None of these. Both option A and B. Apperant power × cosφ. VIcosφ. None of these. Both option A and B. Apperant power × cosφ. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A variable capacitance is one whose capacitance changes with temperature. changes with time. changes with voltage. can be changed manually or by mechanical force. changes with temperature. changes with time. changes with voltage. can be changed manually or by mechanical force. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A series circuit consists of R = 20 Ω, L = 20 mH, and AC supply 60 V with f = 100 Hz. The current in R is 2.54 A. 1.27 A. 10.16 A. 5.08 A. 2.54 A. 1.27 A. 10.16 A. 5.08 A. ANSWER DOWNLOAD EXAMIANS APP
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. 2.5 × 102 joules. 3 × 102 joules. 6 × 102 joules. 4 × 102 joules. 2.5 × 102 joules. 3 × 102 joules. 6 × 102 joules. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits 2) Two sinusoidal emfs are given as e1 = Asin(wt+45) and e2 = Bsin(wt-30). The phase difference between the two quantities in degrees is 75. 15. 105. 60. 75. 15. 105. 60. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS