How to Measure Resistance and Voltage in a Circuit

What is the purpose of a multimeter in measuring resistance and voltage in a circuit?

A. To measure current flow

B. To measure temperature

C. To measure pressure

D. To measure resistance and voltage

Answer:

The correct answer is D. To measure resistance and voltage.

A multimeter or a multitester, also known as a volt/ohm meter or VOM, is a digital measuring device that combines various measurement functions in one unit. It is used to measure resistance on ohms and voltage that flow in the circuit, for both AC and DC currents.

A multimeter can measure voltage, current, and resistance accurately. By using the appropriate settings on the multimeter, you can determine the resistance and voltage levels in a circuit, helping you troubleshoot electrical issues and ensure the proper functioning of the circuit.

When measuring resistance, ensure that the circuit is not powered on to prevent damage to the multimeter. Connect the multimeter probes to the components you want to measure and select the resistance setting on the multimeter. The multimeter will display the resistance value in ohms.

Similarly, when measuring voltage, ensure that the multimeter is set to the correct voltage range based on the circuit's voltage levels. Connect the multimeter probes to the circuit components and read the voltage measurement displayed on the multimeter.