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 / √3 V. 250 V. 200 V. 250 √3 V. 250 / √3 V. 250 V. 200 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A constant voltage source has minimum current capacity. high internal resistance. minimum efficiency. low internal resistance. minimum current capacity. high internal resistance. minimum efficiency. low internal resistance. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which metal is deposited for electro forming? Silver. Chromium. Iron. Nickel. Silver. Chromium. Iron. Nickel. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 60 Hz frequency voltage would cause a bulb to turn on and off 70 times per second. 80 times per second. 60 times per second. 120 times per second. 70 times per second. 80 times per second. 60 times per second. 120 times per second. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A battery of E Volts is supplying a steady current to a series circuit of total resistance RΩ and inductance L Henry. A part R1 of the total resistance is suddenly short circuited. Find the expression for current flowing through the battery subsequent to the operation. i = {E / R1 - R)}(1- e - (R1 - R) t / L) i = {E / (R - R1)}[1-(R1 / R) *e- {(R - R1 )t/L} i = {E / R}[1-(R1 / R) *e - {(R - R1 )*t/L} None of these i = {E / R1 - R)}(1- e - (R1 - R) t / L) i = {E / (R - R1)}[1-(R1 / R) *e- {(R - R1 )t/L} i = {E / R}[1-(R1 / R) *e - {(R - R1 )*t/L} None of these ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A wire of resistance R has it length and cross - section both doubled. Its resistance will become 4R. R. 0.5R. 2R. 4R. R. 0.5R. 2R. ANSWER DOWNLOAD EXAMIANS APP
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