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Operational Amplifiers Basics
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You are designing a simple audio amplifier using an operational amplifier. You want to ensure that the amplifier outputs a clean sound without distortion. If the non-inverting input receives a signal that is 2V higher than the inverting input, what will be the output of the op-amp if it has a gain of 100?

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Choose AnswerChoose the Best Answer

A

200V

B

2V

C

100V

D

0V

Understanding the Answer

Let's break down why this is correct

An op-amp multiplies the voltage difference between its inputs by its gain. Other options are incorrect because This answer treats the output as the same as the input difference, ignoring that the amplifier multiplies that difference; This mixes up the gain value with the input level.

Key Concepts

Operational Amplifiers
Gain Calculation
Signal Processing
Topic

Operational Amplifiers Basics

Difficulty

easy level question

Cognitive Level

understand

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Definition
Definition

Operational amplifiers (op-amps) are devices that amplify the difference between their two inputs by a large gain factor. They have five terminals, including power supply terminals, inverting and non-inverting inputs, and an output terminal.

Topic Definition

Operational amplifiers (op-amps) are devices that amplify the difference between their two inputs by a large gain factor. They have five terminals, including power supply terminals, inverting and non-inverting inputs, and an output terminal.

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