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The diode used in the circuit shown in t...

The diode used in the circuit shown in the figure has a constant voltage drop of `0.5 V` at all currents and a maximum power rating fo `100` milliwatts. What should be the value of the resistor `R`, connected in series with the diode for obtaining maximum current?

A

`15Omega`

B

`5Omega`

C

`6.67Omega`

D

`200Omega`

Text Solution

Verified by Experts

The correct Answer is:
B
Current through circuit,
`I=(P)/(V)=(100xx10^(-3))/(0.5)=0.2A`
Voltage drop across `R=1.5-0.5=1.0V`
Hence, `R=1//0.2=5Omega`
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