JEE PHYSICS MCQ: ELECTRIC FIELDS AND CHARGES

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Electric charge is uniformly distributed along a long straight wire of radius 1mm. The charge per cm length of the wire is

{\cal Q}

coulomb. Another cylindrical surface of radius 50 cm and length 1m symmetrically encloses the wire. The total electric flux passing through the cylindrical surface is

View answer and explanation

Correct option: B

\frac{{100{\cal Q}}}{{{\varepsilon _0}}}

Option B (

\frac{{100{\cal Q}}}{{{\varepsilon _0}}}

) is correct because it applies Gauss's law to find the electric flux through the cylindrical surface, considering the charge enclosed within the 1-meter length.

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