SSC JE 2019-20 Technical Quiz 46

In a split motor

In a hysteresis motor, the rotor must have

A hysteresis motors

A circuit having power factor of 0.8 consumes 20 W. What is the value of reactive power (in VAR) of the circuit?

Which of the following can measure the resistance having value below 1 Ohms most precisely?

The three bulbs give 50 W, 70 W and 80 W. Out at the three bulbs, which bulb has thickest filament assuming all the bulbs have tungsten filament of same length.

For the graph shown in the figure, find the value of the temperature coefficient of resistance (in ^oC).

A hot wire sup1ies 100 kJ in 10 minutes. What is the potential difference (in V) across the wire, when the current is 2 A?

Synchronous motor only runs at

While starting a synchronous motor as induction motor, field winding is