A long straight wire with a circular | EMF

JEE MAIN 2022

25-06-2022 S1

Question

A long straight wire with a circular crosssection having radius R , is carrying a steady current I . The current I is uniformly distributed across this cross-section. Then the variation of magnetic field due to current I with distance $r(r

Select the correct option:

$B \propto r^2$

$\beta \propto r$

$B \propto \frac{1}{r^2}$

$B \propto \frac{1}{r}$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Question Tags

JEE Main

Physics

Easy

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