Junction Transistor
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: n-p-n transistor permits more current than a p-n-p transistor.
Reason R: Electrons have greater mobility as a charge carrier.
Choose the correct answer from the options given below:
Show answer and solution
Answer: (a)
- In n-p-n the main charge carriers are electrons; in p-n-p they are holes.
- Electron mobility is greater than hole mobility, so for the same conditions n-p-n gives a larger current.
- Both A and R are true and R explains A, so the answer is (a).