Electric Circuits The value of supply voltage for 400 W, 4 Ω load is 40 V. 400 V. 20 V. 200 V. 40 V. 400 V. 20 V. 200 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is the real power in AC operation? None of these. Both option A and B. VIcosφ. Apperant power × cosφ. None of these. Both option A and B. VIcosφ. Apperant power × cosφ. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits For the circuit shown below the value of R is adjusted so as to make the current in RL equal to zero. Calculate the value of R. 1 Ω. 3 Ω. 2 Ω. 4 Ω. 1 Ω. 3 Ω. 2 Ω. 4 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In RC series circuit R = 2Ω, C = 2μF and 10V dc is applied. Then what is the value of current? 0A 10A 2A 5A 0A 10A 2A 5A ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The hot resistance of a tungsten lamp is about 10 times the cold resistance. Accordingly, cold resistance of a 100 W, 200 V lamp will be 40 Ω. 400 Ω. 800 Ω. 4 Ω. 40 Ω. 400 Ω. 800 Ω. 4 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A star connected load has three equal impedance each of (40 + j30) Ω If the line current is 5 A then value of line voltage is 200 V. 250 / √3 V. 250 √3 V. 250 V. 200 V. 250 / √3 V. 250 √3 V. 250 V. ANSWER DOWNLOAD EXAMIANS APP
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