Input Bias Current MCQ Quiz - Objective Question with Answer for Input Bias Current - Download Free PDF

Last updated on Apr 3, 2025

Latest Input Bias Current MCQ Objective Questions

Input Bias Current Question 1:

An op-amp uses differential amplifier at the input stage. Base currents of the two emitter coupled transistors of the differential amplifier are 20 μA and 22 μA. What is the input bias current for the op-amp?

  1. -2 μA
  2. 21 μA
  3. -21 μA
  4. 2 μA

Answer (Detailed Solution Below)

Option 2 : 21 μA

Input Bias Current Question 1 Detailed Solution

The correct answer is option 2):(21 μA)

Concept:

Input Bias Current = Ib1+Ib22

Where Ib1,Ib2 are the base current in A

Calculation:

Ib1 = 20 μA

Ib2 = 22 μA

Input Bias Current = Ib1+Ib22

20+222

= 21 μA

Top Input Bias Current MCQ Objective Questions

An op-amp uses differential amplifier at the input stage. Base currents of the two emitter coupled transistors of the differential amplifier are 20 μA and 22 μA. What is the input bias current for the op-amp?

  1. -2 μA
  2. 21 μA
  3. -21 μA
  4. 2 μA

Answer (Detailed Solution Below)

Option 2 : 21 μA

Input Bias Current Question 2 Detailed Solution

Download Solution PDF

The correct answer is option 2):(21 μA)

Concept:

Input Bias Current = Ib1+Ib22

Where Ib1,Ib2 are the base current in A

Calculation:

Ib1 = 20 μA

Ib2 = 22 μA

Input Bias Current = Ib1+Ib22

20+222

= 21 μA

Input Bias Current Question 3:

An op-amp uses differential amplifier at the input stage. Base currents of the two emitter coupled transistors of the differential amplifier are 20 μA and 22 μA. What is the input bias current for the op-amp?

  1. -2 μA
  2. 21 μA
  3. -21 μA
  4. 2 μA

Answer (Detailed Solution Below)

Option 2 : 21 μA

Input Bias Current Question 3 Detailed Solution

The correct answer is option 2):(21 μA)

Concept:

Input Bias Current = Ib1+Ib22

Where Ib1,Ib2 are the base current in A

Calculation:

Ib1 = 20 μA

Ib2 = 22 μA

Input Bias Current = Ib1+Ib22

20+222

= 21 μA

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