Measurement should include determining current, voltage, and resistance. When working with a circuit
- connecting the meter to the circuit should be done in the power-off condition
- resistance measurements should always be made in the power-off condition to avoid blowing a fuse in the meter or damaging internal components
- negative reading(s) in a DC circuit means the leads are reversed.
Note: Black will always be placed in the ground position, while red will be in VΩmA for low-value measurements of up to 1-2 amperes and will be moved to the 10 ampere (maximum) position for higher readings.
Process/Skill Questions:
- What is a multimeter?
- How do analog and digital multi-meters compare in use, accuracy, and performance?
- How can multimeters and similar test equipment be used to measure circuit characteristics?
- How do actual and virtual test equipment values compare?
- How can multimeters be used to measure circuit characteristics of voltage and current?
How do series and parallel measurements of current differ?