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A p-n junction diode when forward biased...

A p-n junction diode when forward biased has a drop of 0.4 V which is assumed to be independent of current. A current excess of 10 mA through the diode damages (burns ) the diode. If we want to use a 2 V battery to forward bias the diode, what should be the value of resistor used in series with the diode so that the maximum current does not exceed 5 mA?

A

`130 Omega`

B

`260 Omega`

C

`390 Omega`

D

`320 Omega`

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The correct Answer is:
D
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