In a potentiometer experiment the balancing with a cell is at length … … On shunting the cell with a resistance of … the balancing length becomes … …. The internal resistance of the cell is

Option C. The internal resistance of the cell,

Current Electricity

JEE Main 2005 · Annual, Paper 1 · Q6500

PhysicsEasy226×since 2002Q6500

In a potentiometer experiment the balancing with a cell is at length

240

cm.

On shunting the cell with a resistance of

2\Omega ,

the balancing length becomes

120

cm

. The internal resistance of the cell is