An ammeter is used to measure which electrical quantity, and how is it connected?

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Study for the Con Edison Basic Electric Test. Prepare with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

An ammeter is used to measure which electrical quantity, and how is it connected?

Explanation:
An ammeter measures the flow of electric current and must be connected in series with the circuit so that all the current passes through it. This placement lets the meter read the actual current flowing through the branch. If it were placed in parallel, its very low resistance would create an alternate path, diverting current and distorting the reading or even causing a short. So the correct approach is to measure current in series.

An ammeter measures the flow of electric current and must be connected in series with the circuit so that all the current passes through it. This placement lets the meter read the actual current flowing through the branch. If it were placed in parallel, its very low resistance would create an alternate path, diverting current and distorting the reading or even causing a short. So the correct approach is to measure current in series.

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