First slide

P-N junction diode

Question

The given circuit has two ideal diodes connected as shown in the figure. The current flowing through the resistance $R_{1}$ will be

Easy

A

2.5 A
B

10.0 A
C

1.43 A
D

3.13 A

Solution

Diode $D_{1}$ is reverse biased so, it will block the current and diode $D_{2}$ is forward biased so, it will pass the current. Hence, equivalent circuit becomes as shown in the figure.
Current in the circuit= Current flowing through
$\begin{array}{l} the resistance R_{1} = \frac{10}{2 + 2} \\ = 2.5 A \end{array}$

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