Measuring Voltage with a VOM: A Reflective Journey into Electrical Measurements
What is placed in series with the measured voltage and meter coil when using a VOM for voltage measurement?
a. Alternator
b. Microprocessor
c. Bulb
d. Resistor
Final answer:Answer:
When measuring voltage with a VOM, a resistor is placed in series with the measured voltage and the meter coil to limit the current flow.
When measuring voltage with a VOM (Volt-Ohm Meter), a resistor is placed in series with the measured voltage and the meter coil. The resistor serves the important function of limiting the current flowing through the meter coil, which helps prevent damage to the meter and ensures an accurate measurement of voltage.
This practice of including a resistor in the circuit when using a VOM is a fundamental aspect of electrical measurement techniques. By understanding the role of the resistor in the setup, electricians and technicians can ensure the safety of the equipment being used and obtain reliable voltage readings.
Furthermore, this approach highlights the importance of proper instrumentation and technique when working with electrical systems. By following best practices such as using a resistor in series with the VOM, professionals in the field can perform precise measurements and maintain the integrity of the equipment they are testing.