If the dielectric strength of the medium between the contacts builds up more rapidly than the restriking voltage the arc will

In carrier current protection, the purpose of the wave trap is for

Which motor is used to start heavy loads?

Torque in d.c motor = k* φ * Ia
In series motor φ α Ia
Tα I²
starting torque of dc series motor is high

Which lightning stroke is most dangerous?

People can interact with each other through any part of the world through video conferencing using

In which of the following motors, the stator and rotor magnetic fields rotate at the same speed?

In all machine stator and rotor magnetic field rotates (stationary with respect to each other) at synchronous speed with respect to stationary observer.