A meter bridge is used to determine the resistance of an unknown wire by measuring the balance point length . If the wire is replaced by another wire of same material but with double the length and half the thickness, the balancing point is expected to be |
|||||||

a) |
b) |
c) |
d) |

A meter bridge is used to determine the resistance of an unknown wire by measuring the balance point length . If the wire is replaced by another wire of same material but with double the length and half the thickness, the balancing point is expected to be |
|||||||

a) |
b) |
c) |
d) |

1 Answer

127 votes

In a meter bridge the ratio of two resistances is Where and are balancing lengths. Resistance In material remains same Given, Therefore, the new balancing point is expected to be 8 . |

127 votes

127