Electric Circuits A motor having a power factor of 0.8 absorbs in active power of 1200 W the reactive power drawn from the supply is _________ VA. 900 400 250 130 900 400 250 130 ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A branch of a network is said to be active when it consists of one voltage source. capacitor. inductor. resistor. voltage source. capacitor. inductor. resistor. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The efficiency in case of maximum power transfer theorem is 100 %. less than 50 %. 50 % - 100 %. 50 %. 100 %. less than 50 %. 50 % - 100 %. 50 %. 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 / R}[1-(R1 / R) *e - {(R - R1 )*t/L} None of these i = {E / (R - R1)}[1-(R1 / R) *e- {(R - R1 )t/L} i = {E / R1 - R)}(1- e - (R1 - R) t / L) i = {E / R}[1-(R1 / R) *e - {(R - R1 )*t/L} None of these i = {E / (R - R1)}[1-(R1 / R) *e- {(R - R1 )t/L} i = {E / R1 - R)}(1- e - (R1 - R) t / L) ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Atoms with fewer than 4 valence electrons are conductor. insulator. semi-conductor. none of these. conductor. insulator. semi-conductor. none of these. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In RLC series circuit, if the voltage across capacitor is greater than voltage across inductor, then power factor of the network is lagging. unity. leading. zero. lagging. unity. leading. zero. ANSWER DOWNLOAD EXAMIANS APP