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

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

Options

A $13 .5 mA$
B $0$
C $15mA$
D $11 .5 mA$

Correct answer

D. $11 .5 mA$

Step-by-step solution

Given, $R = 200Ω$ and $V = 3V$ . We have to calculate the current. We know that, a potential barrier across silicon diode $= 0.7V$ .
The reading of the ammeter for a silicon diode in the given circuit is:

$V = IR$ $⇒ I = \dfrac{3 - 0.7}{200} = 0 . 0115A = 11 . 5mA$

So, the current is $11 . 5mA$ .

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