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A diode having potential difference 0.5 ...

A diode having potential difference `0.5 V` across its junction which does not depend on current, is connected in series with resistance of `20 Omega` across source. If `0.1A` passes through resistance then what is the voltage of the source?

A

1.5V

B

2.0 V

C

2.5V

D

5V

Text Solution

Verified by Experts

The correct Answer is:
C
Here, `V_(D)=0.5 V, R=20Omega, I=0.1 A`
Voltage of the source = Voltage drop across p-n junction + pot. Diff. avross resistance
`=0.5+0.1xx20=0.5+2=2.5 V`
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