The graph for a wire of copper of length and cross-section ares is shown in adjoining figure. The slope of the graph will be

a) |
Less if the experiment is repeated at a higher temperature |
b) |
More if a wire of silver having the same dimension is used |

c) |
Doubled if the length of the wire is doubled |
d) |
Halved if length of the wire is halved |

The graph for a wire of copper of length and cross-section ares is shown in adjoining figure. The slope of the graph will be

a) |
Less if the experiment is repeated at a higher temperature |
b) |
More if a wire of silver having the same dimension is used |

c) |
Doubled if the length of the wire is doubled |
d) |
Halved if length of the wire is halved |

1 Answer

127 votes

On doubling the length of wire its resistance is doubled and slope of graph is doubled |

127 votes

127