An ammeter is used to directly measure the resistance on an injector.

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Multiple Choice

An ammeter is used to directly measure the resistance on an injector.

Explanation:
Current is what an ammeter reads, not resistance. An ammeter is placed in series to measure how much current flows through the injector, which helps assess if the injector coil is drawing the expected current. It does not report a resistance value directly. To measure resistance, you’d use an ohmmeter (with power removed) or a meter set to resistance mode, and then you could relate voltage and current with Ohm’s law if you needed to estimate resistance—but that would not be a direct resistance measurement. So the statement about directly measuring resistance with an ammeter is false.

Current is what an ammeter reads, not resistance. An ammeter is placed in series to measure how much current flows through the injector, which helps assess if the injector coil is drawing the expected current. It does not report a resistance value directly. To measure resistance, you’d use an ohmmeter (with power removed) or a meter set to resistance mode, and then you could relate voltage and current with Ohm’s law if you needed to estimate resistance—but that would not be a direct resistance measurement. So the statement about directly measuring resistance with an ammeter is false.

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