Extension of moving iron ammeter range can be done by using Shunt Capacitor Multiplier Inductor TRUE ANSWER : ? YOUR ANSWER : ?
If the copper loss of a transformer at half full load is 400 W, then the copper loss corresponding to full load is 800 W 400 W 1600 W 1200 W TRUE ANSWER : ? YOUR ANSWER : ?
Find the frequency of rotor induced EMF of a 3-phase, 440V, 50 Hz induction motor has a slip of 10% 50Hz 5Hz 25Hz 2.5Hz TRUE ANSWER : ? YOUR ANSWER : ?
In a capacitor start single phase induction motor the current in the: Starting winding lags the voltage The main winding leads the voltage Supply lines lead the voltage Starting winding leads the voltage TRUE ANSWER : ? YOUR ANSWER : ?
In an AC network, the load connected is (10 + j10). The phase relation between the voltage applied and the current through the load is: Voltage and current are in phase with each other Voltage leads current by 45° Voltage lags current by 30° Voltage lags current by 45° TRUE ANSWER : ? YOUR ANSWER : ?
In the circuit shown, find the equivalent resistance between A and B.<br/> 50 ohm 75 ohm 150 ohm 100 ohm TRUE ANSWER : ? YOUR ANSWER : ?
In a transmission line, the voltage regulation is negative whenever receiving end voltage Vs Less than the sending end voltage Greater than the sending end voltage Half of the sending end voltage Equal to the sending end voltage TRUE ANSWER : ? YOUR ANSWER : ?
Two inductors of 4H and 6H are connected in series. The equivalent inductance of this combination is 6 H 2.4 H 10 H 4 H TRUE ANSWER : ? YOUR ANSWER : ?
A coil is wound with 50 turns and a current 8A produces a flux of 200μWb. Calculate the inductance of the coil 0.25 mH 1.25 mH 2.5 mH 0.125 mH TRUE ANSWER : ? YOUR ANSWER : ?