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Question

The given circuit has two ideal diodes connected as shown in the figure below. The current flowing through the resistance R1 will be


  1. 3.13 A
  2. 2.5 A
  3. 10.0 A 
  4. 1.43 A 


Solution

The correct option is B 2.5 A
From figure, ideal diode D1 is reversed biased whereas ideal diode D2 is forward biased. Thus D1 acts as an open switch while D2 as a closed switch as shown in the equivalent circuit.
Thus current flowing through R1, I=VR1+R3=102+2=2.5 A  

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