Question

An infinite line charge is at the axis of a cylinder of length 1m & radius 7cm.If the electric field at any point on curved surface is 250N/C. Find the net electric flux through the cylinder.

Answer 1

Explanation :

It is given that,

Electric field at any point on the curved surface is 250 N/C.

Length of the cylinder, l = 1 m

Radius of the cylinder, R = 7 cm = 0.07 m

Net electric flux through the cylinder is given by :

$\phi=E\times 2\pi r\times l$

$\phi=250\ N/C\times 2\times 3.14\times 0.07\ m\times 1\ m$

$\phi=109.9\ Nm^2/C$

Hence, this is the require solution.                      

Answer 2

answer is 200 in round figer

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