Discussion Forum

1)

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

Answer:

Option C

Explanation:

Key Idea Potential drop in a silicon diode in forward bias is around 0.7 V. In given circuit, potential drop across 200Ω resistor is

                  $I= \frac{\triangle V_{net}}{R}=\frac{3-0.7}{200}$

    $\Rightarrow$   I =0.0115A $\Rightarrow$   I=11.5mA