Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main2016PhysicsSemiconductorsActual

The ratio (R) of output resistance r 0 , and the input resistance r i in measurements of input and output characteristics of a transistor is typically in the range :

Options

  1. AR ~ 10 2 - 10 3
  2. BR ~ 1 - 10
  3. CR ~ 0.1 - 1.0
  4. DR ~ 0.1 - 0.01

Correct answer

A. R ~ 10 2 - 10 3

Step-by-step solution

The input resistance r i of a transistor is in the range of 1 - 10   kΩ . The output resistance r 0 of a transistor is in the order of 100   kΩ . So, the ratio of output resistance and input resistance, R = r 0 r i = 100   kΩ 1 - 10   kΩ ⇒   R ~ 10 2 - 10 3

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