Assertion : Leclanche cell is used, when constant supply of electric current is not required.
Reason : The e.m.f. of a Leclanche cell falls, if it is used continuously.

The e.m.f. of a cell is a

Name the device used for measuring the e.m.f. of a cell.

Name the device used for measuring the e.m.f. of a cell.

What is electrochemical series? How it used to determine the e.m.f. of the cell?

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

When an electric cell is in use, .... Relation holds good.

A cell of e.m.f. 4 V and of negligible internal resistance is connected in series with a potentiometer wire of length 400 cm. The e.m.f. of a Leelanche cell is found to be balacned at 150 cm from the positive end of the potentiometer wire. What is the e.m.f. of the Leclanche cell ?

A cell of e.m.f. 4 V and of negligible internal resistance is connected in series with a potentiometer wire of length 400 cm. The e.m.f. of a Leelanche cell is found to be balacned at 150 cm from the positive end of the potentiometer wire. What is the e.m.f. of the Leclanche cell ?