A student is recuired to measure emf of a cell the should use .

How do you measure the Emf of a cell

Instrument used to measure e.m.f of the cell accurately is

Volymeter can not be used to measure emf to a cell potentiometer can be used to measure emf of a cell because

Remya makes the following circuit to measure the emf of a cell. She says that the voltmeter reading will give the emf of the cell.The Physics teacher says that it is not possible to measure the emf of the cell in this way. Justify this statement.

To measure temperature, most accurately one should use

The instrument for accurate measurement of emf of a cell is