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?

`1.5Omega`

`5Omega`

`6.67Omega`

`200Omega`

Text Solution

Verified by Experts

The correct Answer is:

`P=Viimpliesi=(P)/(V)=(100xx10^(-3))/(0.5)=0.2A`
`p.d.` across resitance `V_(1)=1.5-0.5=1V`
`V_(1)=iRimplies1=0.2R`
`R=5Omega`

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