Question

an electron enters a magnetic field at right angle to it as shown in figure the direction of force acting on the electron will be
a. to the right
b. to the left
c. out of the page
d. into the page​

Answer 1

Answer:

a..................................

Answer 2

Answer:

the correct ans is d

Explanation:

We know that both the directions are perpendicular, thus for force direction=?

Using Fleming's left hand rule,

Direction of force is perpendicular to the direction of magnetic field and current.

Thus direction of force is opposite to electron motion into the page at 90