⇦ | ⇨ |
In an unbiased p-n junction, holes diffuse from the p-region to n-region because of
Options
(a) the potential difference across the p-n junction
(b) the attraction of free electrons of n-region
(c) the higher hole concentration in p-region than that in n-region
(d) the higher concentration of electrons in the n-region than that in the p-region
Correct Answer:
the higher hole concentration in p-region than that in n-region
Explanation:
In p-region of p-n junction holes concentration > electrons concentration and in n-region electron concentration > holes concentration
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Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A circular disc X of radius R is made from an iron plate of thickness t and another disc
- The voltage of an a.c.supply varies with time (t) as V=120 sin 100 πt the maximum voltage
- A 36 Ω galvanometer is shunted by resistance of 4 Ω. The percentage of the total current
- A p-n-p transistor is used in common emitter mode in an amplifier circuit.
- Thin uniform rod of length L, cross-sectional area A and density ρ is rotated
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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