Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Semiconductors and Electronic Devices

Question:

The depletion layer in a silicon diode is 1μm wide and its knee potential is 0.6V, then the electric field in the depletion layer will be:

Options:

$0.6 V/m$

$6 × 10^4 V/m$

$6 × 10^5 V/m$

Zero

Correct Answer:

$6 × 10^5 V/m$

Explanation:

$E=-\frac{dV}{dr}=\frac{0.6}{10^{-6}}=6 × 10^5 V/m$