Question

Calculate the Hall voltage when B=5A/m, I=2A, w=5cm and n=10^20.

(a) 3.125V

(b) 0.3125V

(c) 0.02V

(d) 0.002V

I had been asked this question by my school teacher while I was bunking the class.

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

Answer 1

Correct option is (d) 0.002V

For explanation I would say: Vh=BI/wρ

=5=2/ (5*10^-2*10^5*1.6*10^-19)

=0.002V.