Chapter: All About Circuits > Volume I - DC > Chapter 1: BASIC CONCEPTS OF ELECTRICITY > Voltage and current

Typos (marked in red):

- REVIEW:
- Electrons can be motivated to flow through a conductor by a the same force manifested in static electricity.
- Voltage is the measure of specific potential energy (potential energy per unit charge) between two locations. In layman's terms, it is the measure of "push" available to motivate electrons.
- Voltage, as an expression of potential energy, is always relative between two locations, or points. Sometimes it is called a voltage "drop."
- When a voltage source is connected to a circuit, the voltage will cause a uniform flow of electrons through that circuit called a current.
- In a single (one loop) circuit, the amount current of current at any point is the same as the amount of current at any other point.
- If a circuit containing a voltage source is broken, the full voltage of that source will appear across the points of the break.
- The +/- orientation a voltage drop is called the polarity. It is also relative between two points.

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