ISRO Scientist or Engineer Electrical 2015

The Burden ofprotective Current Transformer (CT) is specified in

In the network shown in the figure below, the current in the 12 Ohm resistor is 5 Amps, the battery voltage E is

What is the equivalent capacitance of the following circuit?

The relation between the flux density (B) and Magnetic field intensity (H) is given by $$B = \mu H$$. What is $$\mu$$ in this relation?

Powersupply to a 10 pole induction motor is supplied by 4 pole alternator which is driven at 1500 RPM. If the motor runs with slip of 4%, whatis its speed?

A power factor meter connected in a circuit indicates pf of 0.6 lagging. To improve the power factor, we have to insert the following componentin the circuit.

The logic evaluated by the circuit at the output is

The figure shows a half wave rectifier circuit with input voltage $$U(t) = 10 \sin (100 \pi t)$$ volts. Assuming ideal diode characteristics with zero forward voltage drop and zero reverse current, the average power consumed in watts by the load resistance RL is

The truth table

Represent the Boolean function

A three stage Johnson counter ring in figure is clocked at a constant frequency of $$f_c$$. from starting state of $$Q_0, Q_1, Q_2 = 101$$. The frequencyof output $$Q_0, Q_1, Q_2,$$ will be