Question

In the circuit below, the value of the current is

• A. $0\text{Amp}$
• B. ${10}^{-2}\text{Amp}$
• C. $1\text{Amp}$
• D. $0.10\text{Amp}$

Answer 1

The correct option is B ${10}^{-2}\text{Amp}$

Diode is forward biased and biasing voltage is $4-1=3\text{Volts}$

$\Rightarrow I=\frac{V}{R_{eff}}=\frac{V}{R_f+300}$

Here, $R_f$ is the resistance of the diode in forward biased connections.

As, $R_f\approx 0$

$\therefore I=\frac{3}{R_f+300}={10}^{-2}\text{Amp}$

Hence, $\left(B\right)$ is the correct answer.