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

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

A

`1.5 Omega`

B

`5 Omega`

C

`6.67 Omega`

D

`200 Omega`

Text Solution

Verified by Experts

The correct Answer is:
B
The current through circuit
`i=P/V=(100xx10^(-3))/(0.5)=0.2A`
`:.` voltage drop across resistance ` = 1.5 - 0.5 = 1 V `
`implies R = 1 / (0.2)=5Omega`
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