Examine meter movement, using analog and digital multimeters.
Examination includes
- defining
- meter sensitivity
- shunts
- multipliers
- internal resistance
- loading
- Wheatstone bridge
- explaining the operation of a Wheatstone bridge
- explaining the internal resistance and loading effect.
Process/Skill Questions:
- What are the consequences of neglecting to zero a meter?
- What are the advantages of digital multimeters?
- How does the internal resistance affect a meter's reading?
- What is the function of the Wheatstone bridge?