NEET Physics Semiconductor Electronics Questions Solved

NEET - 2015

In the given figure, a diode D is connected to an external resistance R = 100 Ω  and an e.m.f of 3.5 V. If the barrier potential developed across the diode is 0.5 V. the current in the circuit will be





Given, external resistance R=100Ω and emf is 3.5V Potential barrier across the diode is 0.5V

Potential difference on R=3.5V-0.5V=3.0V

Current in circuit I=V/R=3/100=0.03A=30mA

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