Question

3. Electricity. Worksheet the resistivity of iron is 1 x 10 ohm-m. The resistance of a iron wire of particular length and thickness is 1 and the diameter of wire both are doubled, then the resistivity in ohm-m will be (a) 1x107 chot 2107 (c) 4 10 (a) 10

Answer 1

Explanation:

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