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A small insect crawls in the direction o...

A small insect crawls in the direction of electron drift along bare copper wire that carries a current of 2.56A. It travels with the drift speed of the electron in the wire of uniform cross-section area `1mm^2`Number of free electrons for copper =`8 times 10^22// cc` and resistivity of copper = `1.6 times 10^-8 Omega m`
If the insect starts from the point of zero potential at it reaches a point of ……potential after 10 sec

A

80`mu`V

B

`-80 mu V`

C

`160muV`

D

`-160muV`

Text Solution

Verified by Experts

`S=2 times 10^-4 times 10=2 times 10^-3 ,E=pJ=1.6 times 10^-8 times 2.56/10^-6,V=Es=80mu V`
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