For the following questions answer them individually
The main source of hydro-electric power station is
The function of circuit breaker is
Wiring clips are usually made of
The switch unit need not be on the what type of wire
One unit of electrical energy equals
Filaments of electric bulbs are usually made of
Insulation resistance is expressed by
In which of the following equipments, current rating is not necessary?
which type of fan used between dust collector and chimney in thermal power plant
Who invented the electric bulb?