Question

A potential barrier of $0.50V$ exists across a $P-N$ junction, If the depletion region is $5.0\times {10}^{-7}m$ wide, the intensity of the electric field in this region is?

• A. $1.0\times {10}^{6}V/m$
• B. $1.0\times {10}^{5}V/m$
• C. $2.0\times {10}^{5}V/m$
• D. $2.0\times {10}^{6}V/m$

Answer 1

The correct option is A $1.0\times {10}^{6}V/m$

$E=\frac{v}{d}$

$=\frac{0.5}{5\times {10}^{-7}}$

$=1.0\times {10}^{6}v/m$