Physics
Physics, 20.08.2019 00:00, yogeshsahu40

1.
the resistivity of iron is 1x10 ohm-m. the resistance of a iron
wire of particular length and thickness is 1 ohm. if the length and
the diameter of wire both are doubled, then the resistivity in
ohm-m will be
(b) 2x10-7
tot 1x10?
(c) 4x107
(d) 8x107​

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the resistivity of iron is 1x10 ohm-m. the resistance of a iron
wire of particular leng...

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