1.

In the given figure, a diode `D` is connected to an external resistance `R=100 Omega` and an emf of `3.5 V`. If the barrier potential developed across the diode is `0.5 V`, the current in the circuit will be : A. 35mAB. 30mAC. 40mAD. 20mA

Answer» Correct Answer - B
Effective voltage of circuit, `V=3.5-0.5=3.0V`
Current in circuit `I=V/R=3.0/100A=30 mA`


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