Voltage regulation describes how output voltage changes with load. Which option best expresses this?

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Multiple Choice

Voltage regulation describes how output voltage changes with load. Which option best expresses this?

Explanation:
Voltage regulation is about how the output voltage behaves as the load on a source changes. Real sources have some internal impedance, so when the load draws more current, the output voltage tends to drop a bit. Regulation measures how much the no-load voltage differs from the full-load voltage, usually as a percentage. That makes the description of how output voltage changes with load the best expression of voltage regulation. The other options describe energy storage, how frequency varies with load, or how temperature affects resistance—different phenomena than voltage stability under changing load.

Voltage regulation is about how the output voltage behaves as the load on a source changes. Real sources have some internal impedance, so when the load draws more current, the output voltage tends to drop a bit. Regulation measures how much the no-load voltage differs from the full-load voltage, usually as a percentage. That makes the description of how output voltage changes with load the best expression of voltage regulation. The other options describe energy storage, how frequency varies with load, or how temperature affects resistance—different phenomena than voltage stability under changing load.

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