SSC JE Electrical Engineering 27th Jan 2018 Shift-1

Determine the peak value (in A) of the current used by a motor rated at 220 V, 30 A.

What will be the frequency (in Hz) of a sinusoidal wave, when the time period is 20 ms?

Determine the instantaneous value of the alternating current (in A), which is represented by $$ i (t) = 10 \sin(25 t - 15 A)$$, if the value of t is 3?

At resonant frequency, the impedance of a series resonant circuit is _______________.

Determine the value of the phase angle (in degrees) in a series RC circuit having a resistance of 20 ohms and capacitive reactance of 11.56 ohms when supplied by a frequency of 50 Hz.

A 3-phase delta connected system is supplied by a line voltage of 200 V. The value of phase current is 30 A. What is the total power consumed (in W) by the system, if the current lags the voltage by 30 degrees?

What will be the capacitive susceptance (in Siemens) of the circuit given below?

Determine the reactive power (in kVAR) of a 3-phase delta connected system having a line voltage of 400 V, line current of 40 A and the phase difference between the voltage and current is 45 degrees.

Determine the quality factor of a series RLC circuit, when the value of capacitance is 0.02 mF, the value of inductance is 8 mH and the value of resistance is 40 ohms.

What will be the time (in seconds) taken by the inductor reach its maximum steady state value in a series RL circuit, when the value of the inductance is 0.8 H and the value of the resistance is 10 Ohms?