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In the circuit shown if current for the ...


In the circuit shown if current for the diode is `20 muA`, the potential difference across the diode is

A

2V

B

4.5V

C

4V

D

2.5V

Text Solution

Verified by Experts

The correct Answer is:
C
Diode is reversed biased, so only drift current due to minority carriers due to `20 mu A`
Potentail drop across resistor
`V=15 Omega times 2 mu A`
=`300 mu v=0.0003V`
Potential difference across the diode
=4-0.0003=3.99-4V
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