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Question

The circuit shown below contains two diodes each with a forward resistance of 50Ω and
with infinite backward resistance. Find current through 100Ω resistance.
523676.jpg

A
0.06 A
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B
0.03 A
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C
0.02 A
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D
Zero
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Solution

The correct option is B 0.03 A
In the given circuit only diode A will allow the current to pass through as it is forward biased. Forward resistance is 50Ω. Hence, total resistance of the conducting path, R=50+50+100=200Ω

i=6200=0.03A

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