JEE Main · PhysicsHard
In a p-n junction diode, the depletion layer width $w = 1 \, \mu\text{m}$ and the potential barrier $V_b = 0.7 \, \text{V}$. What is the magnitude of the electric field $E$ in the depletion region?
- A.$0.7 \times 10^6 \, \text{V/m}$
- B.$0.7 \times 10^5 \, \text{V/m}$
- C.$7 \times 10^6 \, \text{V/m}$
- D.$1.4 \times 10^6 \, \text{V/m}$
Show correct answer & step-by-step solution
Correct answer: A — $0.7 \times 10^6 \, \text{V/m}$
Solution
The electric field .
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