Question

An electron is projected so that it crosses three different regions of space as shown. if $B_1,B_2$ and $B_3$ are the magnetic field in the region,then:

• A. $B_1$ is inward
• B. $B_2$is outward
• C. $B_3$ is inward
• D. All of these

Answer 1

The correct option is A $B_1$ is inward

For region $B_1$

From Fleming’s left hand rule

So, $B_1$ should be outward.

For region $B_2$

From Fleming’s left hand rule

So, $B_2$ should be outward.

For region $B_3$

From Fleming’s left hand rule

So, $B_3$ should be outward

Hence, the answer is $B_1$ is inward