_______________ is an examples of primary cells.

In parallel combination the resultant potential difference is equal to the potential difference of the individual cells but the time for which the current will flow through the circuit ____________. 

The filament of an electric bulb is of tungsten because __________________________.

Which of the following produce heat energy?

A hammer, a gong, and a soft iron strip are all parts of __________________

Which of the following device converts electrical energy into light energy?

In which of the following devices electricity is used to produce heat energy ?

In which of the following electricity is converted to movement energy ?

The element used almost exclusively for filaments of incandescent lamps is __________________.

__________________ effect results in heating of bulb.