Current through $100$ ohm resistor is
(Given forward resistance of diode $= 50$ ohm, reverse bias resistance $= \infty$ )

0.01 A

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0.02 A

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0.03 A

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0.04 A

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Solution

The correct option is B $0.02 A$
Let, $D_{1}$ be the diode in series with $50 Ω$ resistance, $D_{2}$ be the diode in series with $150 Ω$ resistance.
Diode $D_{1}$ is reversed biased and have infinite resistance hence no current will flow through $50 Ω$ resistance.
Thus, total current in the circuit is
$I = \frac{6}{150 + 50 + 100}$
$I = 0.02 A$
As all the resistances are in series, thus we get the current passing through the $100$ ohm resistor as $0.02 A$ .

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