2 grammar to clarify the question
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I want to test electromagnetism. The first idea I comecame up with is usingwas to use an ammeter and voltmeter for circuitry.

However, these instruments arewere designed based on electromagnetism. So I think this experiment falls into awould involve circular reasoning and be invalid.

How can I verify the electromagnetism?

I want to test electromagnetism. The first idea I come up with is using ammeter and voltmeter for circuitry.

However, these instruments are designed based on electromagnetism. So I think this experiment falls into a circular reasoning and invalid.

How can I verify the electromagnetism?

I want to test electromagnetism. The first idea I came up with was to use an ammeter and voltmeter for circuitry.

However, these instruments were designed based on electromagnetism. So I think this experiment would involve circular reasoning and be invalid.

How can I verify electromagnetism?

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How to test electromagnetism avoiding circular reasoning?

I want to test electromagnetism. The first idea I come up with is using ammeter and voltmeter for circuitry.

However, these instruments are designed based on electromagnetism. So I think this experiment falls into a circular reasoning and invalid.

How can I verify the electromagnetism?