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MHT CET202521 Apr 2025Evening ShiftPhysicsSemiconductorsActual

If the internal resistance of cell is negligible then current flowing through the circuit is

Options

  1. A0.04 A
  2. B0.06 A
  3. C0.08 A
  4. D0.10 A

Correct answer

D. 0.10 A

Step-by-step solution

Current through the circuit With ideal diodes (forward-biased diodes short, reverse-biased diodes open), the circuit analysis becomes: The anode of D1 connects to a higher potential (near +5 V) than its cathode, so it is forward biased and acts as a short. The cathode of D2 connects to higher potential than its anode, so it is reverse biased and acts as an open circuit. Removing the open branch (D2 and its 30 resistor) and recognizing D1 is shorted, the circuit reduces to the 5 V source in series with a 20 resistor

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