SSC JE 2019-20 Technical Quiz 43

What is the value of current (in A) at half power of a series R circuit at resonance, when the maximum value of current is 20 A?

Which of the following is TRUE in case of current transformers?

What is the angle between (in degrees) the planes of two moving coils & a dynamometer type 3-phase power factor meter?

For the circuit shown below, what is the value of Thevenin’s equivalent voltage (in V) across the terminals A- B?

A resistor is connected across a 100 V source. If the color code of resistor is Red, Violet, orange, silver then current in the resistor is

A coil of a wire has a resistance of 30 Ω at 20 degrees Celsius and 34.5 Ω at 60 degrees Celsius. Calculate the temperature coefficient resistance of the wire.

For the circuit shown below, the voltage (in V) across 4 mF capacitor is __________.

What is the rms value of the alternating voltage (in V) having a peak value of 1000 V?

Determine the magnitude of magnetic field (in mT) at the center of a 50 cm long solenoid, if the solenoid has 300 turns and carrying a current of 5 A.