Question

An electron enters a magnetic field at right angles to it, as shown in figure. The direction of force acting on the electron will

• A. out of the screen
• B. to the right
• C. to the left
• D. into the screen

Answer 1

The correct option is D

into the screen

The direction of current is opposite to the direction of flow of electrons. Thus, using Fleming's left hand rule, we get the direction of force on electron to be into the paper.