Fundamentholfundamenthol
JEE Main2019Physics
Q.

A potentiometer wire AB having length L and resistance 12 r is joined to a cell D of emf and internal resistance r. A cell C having emf /2 and internal resistance 3r is connected. The length AJ at which the galvanometer as shown in fig. shows no deflection is : 

  1. A

  2. B

  3. C

  4. D

Solution

← Back to full paper

Practice more Physics

Concept-wise practice with instant solutions on Fundamenthol.

Start practicing →