Answered

This test instrument reads current in an electrical circuit.

Select one:

A. Ohmmeter
B. Voltmeter
C. Ammeter
D. Oscilloscope



Answer :

Final answer:

Explanation of ohmmeters, ammeters, and digital multimeters for measuring current, voltage, and resistance in electrical circuits.


Explanation:

Ohmmeter is an instrument that applies a voltage to a resistance, measures the current, calculates the resistance using Ohm's law, and provides a readout of this calculated resistance. It works based on the relationship between current, voltage, and resistance within an electrical circuit.

Ammeters measure the electric current in a circuit, while ohmmeters measure the resistance of a component by applying a known voltage and measuring the resulting current, enabling calculation of resistance using Ohm's law.

A digital multimeter combines the functions of ammeters, voltmeters, and ohmmeters in a single handheld device, providing a versatile tool for measuring voltage, current, resistance, and more.


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