किसी विद्युत सेल के विद्युत वाहक बल (emf) की SI इकाई क्या है?

The potential difference (V) between two points is defined as:

Which instrument is used to measure the potential difference between two points in an electric circuit?

Which law states that V = IR?

Which of the following metals is the best conductor of electricity?

Which component is used to open or close an electric circuit?

In an electric circuit, if the resistance is halved while the voltage remains constant, how does the electric power change?

If an electric bulb is designed to operate at 12 volts and draws a current of 0.5 amperes, what is the resistance of its filament according to Ohm's Law?

A fuse wire repeatedly melts and breaks when connected to an electric heater. To safely handle the higher current, it is advised to use a fuse wire of: