How is an ammeter connected to a circuit?

Question

A.
One end is connected to the positive end of the battery and the other end is connected to the negative end.
B.
It is connected parallel to the circuit.
C.
Only one end is connected to the circuit.
D.
It is in series with the circuit.
E.
It is connected perpendicular to the circuit.

Answer 1

D. It is in series with the circuit.

An ammeter is designed to measure the current flowing through a circuit, and in order to do so, it must be connected in series with the circuit components. This allows all of the current to pass through the ammeter so it can provide an accurate measurement.