The following four wires are made of the same material and are at the same temperature. Which one of them has highest electrical resistance? |
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a) |
Length =50 cm, diameter=0.5 mm |
b) |
Length =100 cm, diameter=1 mm |

c) |
Length=200 cm , diameter=2 mm |
d) |
Length=300cm, diameter=3 mm |

The following four wires are made of the same material and are at the same temperature. Which one of them has highest electrical resistance? |
|||

a) |
Length =50 cm, diameter=0.5 mm |
b) |
Length =100 cm, diameter=1 mm |

c) |
Length=200 cm , diameter=2 mm |
d) |
Length=300cm, diameter=3 mm |

1 Answer

127 votes

The resistance of a conductor Hence, electrical resistance of first wire is maximum. |

127 votes

127