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JEE Main 202628 JanuaryMorning Shift
Exam
JEE Main
Year
2026
Date
28 January
Shift
Morning Shift
Subject
Physics
Chapter
Semiconductors

JEE Main 2026 · 28 January · Morning Shift · Physics · Semiconductors

Assuming in forward bias condition there is a voltage drop of 0.7 V...

Assuming in forward bias condition there is a voltage drop of 0.7 V across a silicon diode, the current through diode D1D_{1} in the circuit is ____\_\_\_\_ mA.
(Assume all diodes in the given circuit are identical)
Assuming in forward bias condition there is a voltage drop of 0.7 V across a silicon diode, the current through diode

Options

  1. A17.6
  2. B18.8
  3. C11.7
  4. D20.15

Correct answer

B. 18.8

Step-by-step solution

12−0.3×103I−0.7=012 - 0.3 \times 10^3 I - 0.7 = 0
11.30.3×103=I\dfrac{11.3}{0.3 \times 10^3} = I
37.66×10−3 A=I37.66 \times 10^{-3} \text{ A} = I
Current through diode D1D_1, I1=I/2I_1 = I/2
I1=18.83 mAI_1 = 18.83 \text{ mA}
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