Question 96 of 209

The reading of the ammeter for a silicon diode in the given circuit is:

A$13.5mA$B$0$C$15mA$D$11.5mA$

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Answer: (D) $11.5mA$

Given, $R=200\Omega$ and $V=3V$. We have to calculate the current. We know that, a potential barrier across silicon diode $=0.7V$.

$V=IR$$\Rightarrow I=\dfrac{3-0.7}{200}=0.0115A=11.5mA$
So, the current is $11.5mA$.

JEE Main Physics practice question on Semiconductors (Diodes), with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.