# E7G08 - How does the gain of an ideal operational amplifier vary with frequency?

**URL:** <https://forum.openhamprep.com/t/e7g08-how-does-the-gain-of-an-ideal-operational-amplifier-vary-with-frequency/1419>\
**Category:** Extra Questions\
**Created:** [January 2, 2026, 7:53pm UTC](https://forum.openhamprep.com/t/e7g08-how-does-the-gain-of-an-ideal-operational-amplifier-vary-with-frequency/1419 "2026-01-02T19:53:26Z")\
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**Author:** ![system](https://forum.openhamprep.com/uploads/default/original/1X/a8bc13ef992b522befd6b1d923d2f2a53605a9c7.png) [@system](https://forum.openhamprep.com/u/system)\
**Post date:** [January 2, 2026, 7:53pm UTC](https://forum.openhamprep.com/t/e7g08-how-does-the-gain-of-an-ideal-operational-amplifier-vary-with-frequency/1419/1 "2026-01-02T19:53:26Z")

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## Question

How does the gain of an ideal operational amplifier vary with frequency?

## Answer Options

- **A)** It increases linearly with increasing frequency
- **B)** It decreases linearly with increasing frequency
- **C)** It decreases logarithmically with increasing frequency
- **D)** It does not vary with frequency

**Correct Answer: D**

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## Explanation

An operational amplifier (\text{op-amp}) is designed to be a highly versatile, general-purpose voltage amplifier. For all applications, the ideal assumption is that the op-amp should amplify all input frequencies equally up to its maximum operational limit.

Therefore, for an ideal operational amplifier, the voltage gain **does not vary with frequency** within its specified bandwidth. The actual, non-ideal \text{op-amp} does exhibit a gain rolloff at high frequencies (as defined by its gain-bandwidth product), but for basic analysis and within its operating range, the assumption of flat frequency response is used.

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