The current density in a cylindrical wire of radius r = 4.0 mm is 1.0 × 10⁶ A/m². The current through the outer portion of the wire between radial distances r/2 and r is x π A; where x is _ _ _ _ _.

Current Electricity: JEE Main 2022 Physics question

JEE Main 2022 · 27 Jun, Evening shift · Q55

JEE Main 202227 Jun, Evening shiftPhysicsMediumCurrent Electricity150× since 2002

The current density in a cylindrical wire of radius r = 4.0 mm is 1.0

\times

10⁶ A/m². The current through the outer portion of the wire between radial distances

{r \over 2}

and r is x

\pi

A; where x is __________.

Your answerType your answer. Integers and decimals are accepted.

JEE Main 2022 Current Electricity Question with Answer (27 Jun Evening shift, Q55) | JEE Arc