SSC JE Electrical Engineering 2013
For the following questions answer them individually
SSC JE Electrical Engineering 2013 - Question 141
In a motor starter, the electromechanical contactor provides inherent protection against
SSC JE Electrical Engineering 2013 - Question 142
In the circuit, V is the input voltage applied across the capacitor of 2 F. Current through the capacitor is
SSC JE Electrical Engineering 2013 - Question 143
In a semiconductor, the resistivity
SSC JE Electrical Engineering 2013 - Question 144
A geyser is operated from 230V, 50 c/s mains. The frequency of instantaneous power consumed by the geyser is
SSC JE Electrical Engineering 2013 - Question 146
Two lossy capacitors with equal capacitance values and power factors of 0.01 and 0.02 are in parallel, and the combination is supplied from a sinusoidal voltage source. The power factor of the combination is
SSC JE Electrical Engineering 2013 - Question 147
A voltmeter when connected across aDC supply, reads 124 V. When a series combination of the voltmeter and an unknown resistance X is connected across the supply , the meter reads 4V. If the resistance of the voltmeter is 50kΩ , the value of X is
SSC JE Electrical Engineering 2013 - Question 148
The purpose of providing a choke in the tube-light is
SSC JE Electrical Engineering 2013 - Question 149
In a 3-phase 400 V, 4-wire system, two incandescent lamps, one having 230 V, 100 W specification and the other 230 V, 200 W are connected between R phase-neutral and Y phase-neutral respectively. If the neutral wire breaks
SSC JE Electrical Engineering 2013 - Question 150
A solenoid of inductance 250 mH and resistance 10 Ω is connected to a battery. The time taken for the magnetic energy to reach $$\frac{1}{4}th$$ of its maximum
value is
