Question

What is the velocity when the electric field is 5V/m and the magnetic field is 5A/m?

(a) 1m/s

(b) 25m/s

(c) 0.2m/s

(d) 0.125m/s

This question was addressed to me in a national level competition.

Question is from The Hall Effect topic in chapter Conduction in Semiconductors of Electronic Devices & Circuits

Answer 1

Correct answer is (a) 1m/s

The explanation is: E=vxB

 v=E/B

 =5/5

 =1m/s.