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JEE Main 2022 (26 Jun, Shift 1) · P-N Junction Diode

P-N Junction Diode question from JEE Main 2022 (26 Jun, Shift 1)

Q67JEE Main 2022 · 26 JUN · SHIFT 1Medium

P-N Junction Diode

As per the given circuit, the value of current through the battery will be ____________ A.

Figure

Numerical answer type. Work it out, then open the answer.

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Answer: 1

  1. With the battery's lower terminal positive, current enters through the 2 Ω2\ \Omega resistor to the bottom-right node.
  2. Path 1: through D3D_3 (forward), 6 Ω+10 Ω=16 Ω6\ \Omega + 10\ \Omega = 16\ \Omega to the upper-left node.
  3. Path 2: through the 10 Ω10\ \Omega resistor, then D1D_1 (forward) and its 6 Ω6\ \Omega: 16 Ω16\ \Omega. D2D_2 is reverse biased and carries no current.
  4. Req=2+(16∥16)=2+8=10 ΩR_{eq} = 2 + (16 \parallel 16) = 2 + 8 = 10\ \Omega.
  5. I=1010=1I = \frac{10}{10} = 1 A.
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