Question: Q 4 : Copper contains 8 . 4 1 0 2 3 4 free electrons ? m 3 . A copper wire of cross -

Q4: Copper contains 8.410234 free electrons ?m3. A copper wire of cross-sectional area 7.40-7m2 carries a current of 1A. Find the electrons drift speed?
Q5: A copper wire (resistivity of copper is 1.710-8.m) is 30cm long and has a circular cross section with a diameter 1mm. Find the resistance of the wire?
Q 4 : Copper contains 8 . 4 1 0 2 3 4 free

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