When a diode is forward biased, it has a voltage drop of 0 . 5   V . the safe limit of current through…

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 :
  1. 300 Ω
  2. 50 Ω
  3. 100 Ω
  4. 200 Ω

Solution

Vdiode=0.5 volt

VR=1.5-0.5=1 volt

iR=1

R=1i=110-2=100 Ω

Asked in: JEE Main 2020 (03 Sep Shift 1)

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