Vdiode=0.5volt
VR=1.5−0.5=1volt
iR=1
R=i1=10−21=100Ω
When a diode is forward biased, it has a voltage drop of 0.5V . the safe limit of current through the diode is 10mA. If a battery of emf 1.5V 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 :
Held on 3 Sept 2020 · Verified 6 Jul 2026.
300Ω
50Ω
100Ω
200Ω
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