1.

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^2Number of free electrons for copper =8 times 10^22// ccand resistivity of copper =1.6 times 10^-8 Omega m If the insect starts from the point of zero potential atit reaches a point of ……potential after 10 sec

Answer»

80`MU`V
`-80 mu V`
`160muV`
`-160muV`

SOLUTION :`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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