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 currebnt A. a current excess of 10mA through the diode damages (burns) the diode .if we want to use a 2 V battrey to forwqard bias the diode, what should be the avlue of resistor used in series with the diode so thatthe maximum current does NOT exced 5mA?

160`omega`

260`omega`

390`omega`

520`omega`

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