The current density in a cylindrical wire of radius 4 mm is 4 × 10⁶ Am⁻². The current through the outer portion of the wire between radial distances R/2 and R is _ _ _ _ _ _ π A.

Current Electricity: JEE Main 2022 Physics question

JEE Main 2022 · 27 Jun, Morning shift · Q60

JEE Main 202227 Jun, Morning shiftPhysicsMediumCurrent Electricity150× since 2002

The current density in a cylindrical wire of radius 4 mm is 4

\times

10⁶ Am^

-

2. The current through the outer portion of the wire between radial distances

{R \over 2}

and R is ____________

\pi

Your answerType your answer. Integers and decimals are accepted.

JEE Main 2022 Current Electricity Question with Answer (27 Jun Morning shift, Q60) | JEE Arc