DC Fundamentals Unit 3 – Electronic Quantities
Exercise 2 – Circuit Current......................................................................................................
EXERCISE OBJECTIVE
When you have completed this exercise, you will be able to describe and measure current by
using a simple circuit. You will verify your results with a multimeter.
DISCUSSION
- Current is the flow or movement of electrons through a conductor from one point to another.
- Electrons at the negative terminal of a battery are attracted to the positive terminal.
- Total current in an electrical circuit is determined by the voltage applied to the circuit and the
total resistance of the circuit. - Current is directly related to voltage.
- To measure circuit current, an ammeter is placed in series with the circuit.
- The unit of measure for current is the ampere.