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NEET2026PhysicsChapterActual

In the given circuit, D₁ and D₂ are ideal p-n junction diodes. What will be the reading of the ideal voltmeter V connected across D₂ ?

Options

  1. A0 V
  2. B6 V
  3. C11.3 V
  4. D12 V

Correct answer

D. 12 V

Step-by-step solution

In the given circuit, the positive terminal of the 12 V battery is connected to the left side. Diode D₁ is forward-biased as its p-side faces the higher potential. Diode D₂ is reverse-biased as its n-side faces the higher potential. Since D₂ is an ideal diode in reverse bias, it acts as an open circuit. The ideal voltmeter also has infinite resistance, so no current flows through the circuit ( I = 0 ). The voltage drop across the resistor R is V_R = I R = 0 V . The voltage drop across the ideal forward-biased diode

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