Question

Suppose you are facing the north pole of the earth. An electron flying horizontally away from you in the meridian is deflected to the left. Are you in the northern hemisphere or southern hemisphere.​

Answer 1

Answer:

Southern Hemisphere

Explanation:

Now electron moves towards north and get deflected towards east therfore, vertical component of earth's magnetic field must be positive. Now when we find the direction of the force acting on electron by finding the direction of vector

×

B

v

(We will neglect the horizontal component because it will be parallel to the direction of motion of electron hence

v

×

B

H

=0).

The direction of this vector is towards west when B

v

is pointing downwards and our charge is electron therefore, force on it will exert in the direction of east.

Now vertical component is downward in southern hemisphere.