SSC JE Electrical Engineering 2013

Three 3 $$\mu F$$ capacitors are in series. A 6 $$\mu F$$ capacitor is in parallel with this series arrangement. The equivalent capacitance of this combination is

A DC series motor has an armature resistance of 0.06 Ω and series field resistance of 0.08 Ω. The motor is connected to a 400 V supply. Thus line current is 20 A when the speed of the machine is 1100 rpm. When the line current is 50 A and the excitation is increased by 30%, speed of the machine in rpm is

The voltage across R, L and C are 3V, 14 V, and 10 V respectively as in the figure. If the voltage source is sinusoidal, then the input voltage (rms) is

In 1-phase series RL circuit fed by voltage source, the resistance and reactance values are 4 ohm each. In this circuit.

Super position theorem requires as many circuits to be solved as there are

In squirrel cage induction motor, the rotor conductors are

A 3-phase synchronous motor is started by utilizing the torque developed in

If the frequency of input voltage of a transformer is increased keeping the magnitude of the voltage unchanged, then

Two 1-phase AC motors A and B operate from a 1000 V supply. A consumes 2 kW at a power factor of 0.8 (lagging) and B comsumes 1 kW at a power factor of 0.5 (lagging). The total current drawn from the supply is approximately

The high voltage and low voltage winding resistances of a distribution transformer of 100KVA, $$\frac{1100}{220}$$ V, 50 Hz are 0.1 Ω and 0.004 Ω respectively. The equivalent resistances referred to high voltage side and low voltage side are respectively