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JEE Main 202127 JulyEvening Shift

Exam: JEE Main
Year: 2021
Date: 27 July
Shift: Evening Shift
Subject: Physics
Chapter: Magnetic Effects of Current

JEE Main 2021 · 27 July · Evening Shift · Physics · Magnetic Effects of Current

Figure A and B shown two long straight wires of circular...

Figure $A$ and $B$ shown two long straight wires of circular cross-section ( $a$ and $b$ with $a < b$ ), carrying current $I$ which is uniformly distributed across the cross-section. The magnitude of magnetic field $B$ varies with radius $r$ and can be represented as:

Figure A and B shown two long straight wires of circular cross-section ( a and b with a

Options

A
B
C
D

Correct answer

C. During formation of which of the following free nuclear division occurs?

Step-by-step solution

Graph for wire of radius $R$ :

Figure A and B shown two long straight wires of circular cross-section ( a and b with a

As $b > a$

${B}_{a} > {B}_{b}$

${B}_{a} = \dfrac{{\mu}_{0}i}{2\pia}$

${B}_{b} = \dfrac{{\mu}_{0}i}{2\pib}$

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