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  4. A P-N junction diode connected to a battery of e.m.f. 4.5 V and an external resistance of 1000 Ω . What is the value of current in the circuit, if potential barrier in the diode =0.5 V <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/p-ujbe3ncuqkm5.png />

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Q. A $P-N$ junction diode connected to a battery of e.m.f. $4.5 \, V$ and an external resistance of $1000 \, \Omega $ . What is the value of current in the circuit, if potential barrier in the diode $=0.5 \, V$

Question

NTA AbhyasNTA Abhyas 2020Semiconductor Electronics: Materials Devices and Simple Circuits

Solution:

Applying loop equation $i=\frac{4.5 - 0.5}{1000}=4 \, mA$