What tool can be used to measure electrical current in a circuit?

A multimeter is a versatile tool specifically designed for measuring various electrical parameters, including voltage, resistance, and most importantly, electrical current. It can be set to different settings to accurately measure current flow in both direct current (DC) and alternating current (AC) circuits.

When measuring current with a multimeter, it's essential to connect the meter in series with the circuit so that all the electrical current flows through the multimeter, allowing for an accurate reading. This capability is essential for diagnosing electrical issues in automotive systems, helping technicians identify problems like short circuits, open circuits, or excessive current draw.

In contrast, tools like a wrench or screwdriver serve entirely different functions related to mechanical tasks, such as fastening or loosening bolts and screws, and are not designed for measuring electrical parameters. An odometer is specifically used for measuring the distance traveled by a vehicle and does not have any application in measuring electrical current. Hence, only the multimeter is appropriate for this task.