Question

The unit of ratio of diffusion constant (D) and mobility (\(\mu\)) is:

• A. cm\(^2\)/V-sec
• B. Volts
• C. cm\(^2\)/sec
• D. A/m\(^2\)

Hint:

The diffusion constant and mobility in semiconductors are related through Einstein’s relation.

Answer 1

The Correct Option is A

The unit of \( D/\mu \) is cm\(^2\)/V-sec, as derived from the units of diffusion constant and mobility.
Final Answer: \[ \boxed{\text{cm}^2/\text{V-sec}} \]