Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main202628 January 2026Morning ShiftPhysicsSemiconductorsActual

Assuming in forward bias condition there is a voltage drop of 0.7 V across a silicon diode, the current through diode D₁ in the circuit is _ _ _ _ mA. (Assume all diodes in the given circuit are identical)

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 10^3 I - 0.7 = 0 11.3 0.3 10^3 = I 37.66 10⁻³ A = I Current through diode D₁ , I₁ = I/2 I₁ = 18.83 mA

Practice Semiconductors on Quantrex Academy →

More from Semiconductors

The output Y for the given inputs A and B to the circuit is: 2026Refer to the logic circuit given below. For two inputs (A=1, B=1) and (A=0, B=1) , output (Y) will be __________. 2026The maximum rated power of the LED is 2 mW and it is used in the circuit with input voltage of 5 V as shown in the figure below. The current through resistance R_S is 0.5 mA. The m 2026In a semiconductor p-n diode, the doping concentrations on p-side and n-side are 10¹⁵ atoms/cm ^3 and 10¹⁸ atoms/cm ^3 , respectively. Which one of the following statements is true 2026For the given logic circuit, which of the following inputs combination will make both LED -1 and LED -2 to glow? 2026Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: A diode under reverse-biased condition provides very small current 2026A diode has Zener voltage of 10 V and maximum power dissipation of 0.5 W, then the minimum resistance to be used in series with this diode for safety when it is connected to a 25 V 2026Two 4 bits binary numbers, A = 1101 and B = 1010 are given in the inputs of a logic circuit shown in figure below. The output (Y) will be: 2026 Full Semiconductors list All JEE Main PYQs