Question

An electron travelling horizontally towards west enters into a magnetic field acting vertically downwards. It deflects towards
a) South b) North c) Vertically upwards d) North-east (please elaborate your answer)

Answer 1

Answer:

north-east I hope it helps you please make me brainliest

Answer 2

Given:

An electron travelling horizontally towards west enters into a magnetic field acting vertically downwards.

To find:

Direction of deflection of electron.

Calculation:

Let charge of electron be -q , Velocity be v and magnetic field intensity be B:

So, force experienced by the moving charge be F;

$\sf{\therefore \: \vec{F} = - q( \vec{v} \times \vec{B})}$

Now , putting the directions:

$\sf{ = > \: \vec{F} = - q \{v( - \hat{i}) \times B (- \hat{j}) \}}$

$\boxed{ \sf{ = > \: \vec{F} = qvB( - \hat{k}) }}$

So, electron will be deflected towards NORTH.

• The answer can also be found out by using Fleming's Left hand rule.

• Here $(-\hat{k})$ refers to North as represented in the diagram.

HOPE IT HELPS.