calculate the resistence of a metal wire of length 2m and area of cross section 1.55×10 to the power-6 .if the resistivity of the metel 2.8×10 to the power-8 ohm's m
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we know that
resistance = resistivity × length/cross sectional area.
resistance = 3.61× 10^-2.
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Resistance = 3. 61 × 10 ^-2 Ohm
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