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AP EAMCET201822 Apr 2018Morning ShiftPhysicsSemiconductorsActual

If the diodes are ideal in the circuit given below, then the current through the cell is

Options

  1. A4 A
  2. B1.5 A
  3. C2 A
  4. D3 A

Correct answer

C. 2 A

Step-by-step solution

Diode, D₁= reverse biased ( OFF ) and diode, D₂= forward biased ( ON ) . Because diodes are ideal, so voltage drop across D ₂ is zero. Effective resistance, R=3+2+3+2=10 Current through the cell, I=V / R=20 / 10=2 ~A

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