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 250 / √3 V. 250 V. 200 V. 250 √3 V. 250 / √3 V. 250 V. 200 V. 250 √3 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is I1 in the given circuit? 3 A. 1.5 A. 1 A. 0.5 A. 3 A. 1.5 A. 1 A. 0.5 A. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A external resistance R is connected to a cell of internal resistance r, then the current is maximum when R = r. R > r. R < r. None of these R = r. R > r. R < r. None of these ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Under resonance condition the power factor of a system is unity any of the above lagging leading unity any of the above lagging leading 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 800 Ω. 40 Ω. 400 Ω. 4 Ω. 800 Ω. 40 Ω. 400 Ω. 4 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The unit of resistivity is Ω. Ω / m². Ω - metre. Ω / metre. Ω. Ω / m². Ω - metre. Ω / metre. ANSWER DOWNLOAD EXAMIANS APP