The circuit shown here is used to compare the emf of two cells and .

The null point is at when the galvanometer is connected to . when the galvanometer is connected to , the null point will be

a) |
To the left of |
b) |
To the right of |
c) |
At itself |
d) |
None where on |

The circuit shown here is used to compare the emf of two cells and .

The null point is at when the galvanometer is connected to . when the galvanometer is connected to , the null point will be

a) |
To the left of |
b) |
To the right of |
c) |
At itself |
d) |
None where on |

1 Answer

127 votes

. As, , therefore . Therefore the null point for thr cell of emf must be at shorter length than that of cell Thus null point on potentiometer wire should shift towards left of . |

127 votes

127