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In an op-amp configured as a voltage follower in a series circuit, what is the o

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Question: In an op-amp configured as a voltage follower in a series circuit, what is the output voltage relative to the input voltage?

Options:

  1. Higher than the input voltage
  2. Lower than the input voltage
  3. Equal to the input voltage
  4. Inverted compared to the input voltage

Correct Answer: Equal to the input voltage

Solution: 

An op-amp in a voltage follower configuration outputs a voltage that is equal to the input voltage, providing high input impedance and low output impedance.

In an op-amp configured as a voltage follower in a series circuit, what is the o

Practice Questions

Q1
In an op-amp configured as a voltage follower in a series circuit, what is the output voltage relative to the input voltage?
  1. Higher than the input voltage
  2. Lower than the input voltage
  3. Equal to the input voltage
  4. Inverted compared to the input voltage

Questions & Step-by-Step Solutions

In an op-amp configured as a voltage follower in a series circuit, what is the output voltage relative to the input voltage?
  • Step 1: Understand what an op-amp is. An op-amp (operational amplifier) is an electronic device that can amplify voltage.
  • Step 2: Learn about the voltage follower configuration. In this setup, the output of the op-amp is connected directly to its inverting input (-).
  • Step 3: Know that the non-inverting input (+) receives the input voltage. This is the voltage you want to follow.
  • Step 4: Realize that in a voltage follower, the op-amp adjusts its output to match the input voltage.
  • Step 5: Conclude that the output voltage is equal to the input voltage. This means if you put in 5 volts, the output will also be 5 volts.
  • Voltage Follower Configuration – An op-amp configuration where the output voltage directly follows the input voltage, maintaining equal voltage levels.
  • Input and Output Impedance – The characteristics of the op-amp that allow it to have high input impedance and low output impedance, minimizing loading effects.
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