Power factor of the following circuit will be zero Inductance Both of the listed here Resistance Capacitance TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following refers to a parallel circuit? The current through any one element is less than the source current The voltage across element is in proportion to it's resistance value The current through each element is same The equivalent resistance is greater than any one of the resistors TRUE ANSWER : ? YOUR ANSWER : ?
The power consumed in a circuit element will be least when the phase difference between the current and voltage is 60° 180° 90° 30° TRUE ANSWER : ? YOUR ANSWER : ?
The period of a sine wave is ___________ seconds. Its frequency is 30 Hz 20 Hz 40 Hz 50 Hz TRUE ANSWER : ? YOUR ANSWER : ?
Ohm is unit of all of the following except Inductive reactance Capacitive reactance Resistance Capacitance TRUE ANSWER : ? YOUR ANSWER : ?
Pure inductive circuit Does not take power at all from a line None of the listed here Takes power from the line during some part of the cycle and then returns back to it during other part of the cycle Consumes some power on average TRUE ANSWER : ? YOUR ANSWER : ?
The product of apparent power and cosine of the phase angle between circuit voltage and current is True power Volt-amperes Reactive power Instantaneous power TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following coil will have large resonant frequency? A coil with large distributed capacitance A coil with large resistance A coil with low resistance A coil with low distributed capacitance TRUE ANSWER : ? YOUR ANSWER : ?
A parallel AC. circuit in resonance will Act like a resistor of low value Have a high voltage developed across each inductive and capacitive section Have a high impedance Have current in each section equal to the line current TRUE ANSWER : ? YOUR ANSWER : ?
Inductance affects the direct current flow At the time of turning on and off At all the time of operation Only at the time of turning off Only at the time of turning on TRUE ANSWER : ? YOUR ANSWER : ?