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Questions  

The resistance of the diode in the forward biased condition is 10 ohm and infinity in the reverse biased condition. The current in the given circuit is 

 

a
20mA
b
40mA
c
50 mA
d
zero

detailed solution

Correct option is A

total resistance of the circuit is 90+100=100 ohmsnet potential difference is 2 voltcurrent =2100=20 mA

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