A wire has a resistance of 6 . It is cut into two parts and both half values are connected in parallel. The new resistance is |
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a) |
3 |
b) |
6 |
c) |
12 |
d) |
1.5 |

A wire has a resistance of 6 . It is cut into two parts and both half values are connected in parallel. The new resistance is |
|||||||

a) |
3 |
b) |
6 |
c) |
12 |
d) |
1.5 |

1 Answer

127 votes

Resistance of original wire is ,being the specific resistance of wire. When the wire is cut in two equal halves then resistance becomes Thus, the net resistance of parallel combination of two halves is given by |

127 votes

127