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When a diode is forward biased, it has a...

When a diode is forward biased, it has a voltage drop of 0.5 V. The safe limit of current through the diode is 10 mA. If a battery of emf 1.5 V is used in the circuit, the value of minimum resistance to be connected in series with the diode so that the current does not exceed the safe limit is :

A

`300 Omega`

B

`200 Omega`

C

`50 Omega`

D

`100 Omega`

Text Solution

Verified by Experts

The correct Answer is:
D

` V= iR `
`R=(V )/(I ) =(1)/( 10 mA )`
`=( 1000 )/( 10 ) = 100 Omega`
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