A galvanometer, having a resistance of 50 gives a full scale deflection for a current of 0.05A. The length in meter of a resistance wire of area of cross-section that can be used to convert the galvanometer into a ammeter which can read a maximum of 5A current is (Specific resistance of the wire ) |
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a) |
9 |
b) |
6 |
c) |
3 |
d) |
1.5 |

A galvanometer, having a resistance of 50 gives a full scale deflection for a current of 0.05A. The length in meter of a resistance wire of area of cross-section that can be used to convert the galvanometer into a ammeter which can read a maximum of 5A current is (Specific resistance of the wire ) |
|||||||

a) |
9 |
b) |
6 |
c) |
3 |
d) |
1.5 |

1 Answer

127 votes

Resistance of galvanometer Full scale current Required resistance to convert the galvanometer into ammeter. |

127 votes

127