Which of the following is correct to eliminate or reduce the process of cogging?
The ratio of electrical energy supplied by a battery to the amount of electrical energy required to return it to the state before discharge is defined as _____.
In four-point starter, the no volt release is connected across the
Which of the following is a type of arc welding?
Which one of the following statement is true regarding the diverter used in field flux control?
The number of slip rings on a squirrel cage induction motor is usually
The device which is used for maintaining a uniform voltage in the disc to improve the string efficiency is?
Under the which act bureau of energy efficiency of india is established?
A 3-phase, 4-wire system supplies power to a balanced star-connected load. The current in each phase is 10 A. the current in the neutral wire will be
For a three-phase induction motor in direct online starting if short circuit current is 10 times the full load current, and the full load slip is 0.05. Then which one of the following statement is correct.
Which of the following is not a distance relay?
A Buchholz relay is
In a R-C series circuit if C= 40 μF and the initial voltage across capacitor was VC(0-) = -20 V. If the rate of change of voltage through the capacitor dv(0-)/dt = 400 V/sec, then calculate the value of resistance R?
A synchronous machine is connected to an infinite bus. The armature current change with field current for constant real power is
In a circuit given below if R = 20 Ω, L =16 mH and the capacitance C = 160 μF, then calculate the supply current if the input voltage is 200 V, 50 Hz of supply?
Mixed Node is defined as:
Find the current at t = 4 second if µF?
In which material, magnetic field induces a magnetic moment that opposes the very magnetic field that actually causes it.
The main purpose of conservator in a transformer is to
For the given circuit when the load is not connected it is found that the voltage across the load is 50 V. In second case when the load RL is shorted then the current flowing through the Load is 2 A . Find out the current flowing if RL is replaced by 5 Ω.