In order to measure the current in a circuit, an ammeter must ________.
A)be placed so the current must pass through the meter
B)be placed across the load
C)be placed across the source
D)all of these

Question

Quizplus · Accepted Answer

An ammeter is designed to measure the current in a circuit, and therefore must be placed in series with the component that carries the current, so that the current flows through the meter itself. Choices B and C are incorrect because placing the ammeter across the load or source respectively would cause a short circuit and may damage the meter.

In Order to Measure the Current in a Circuit, an Ammeter