The two main types of voltage are:
1. **DC (Direct Current) Voltage**:
- In DC voltage, the electric charge flows in one direction only.
- It remains constant over time, which means the voltage doesn't change or alternate.
- Common examples of DC voltage are batteries, like the ones in your phone or flashlight.
2. **AC (Alternating Current) Voltage**:
- In AC voltage, the electric charge changes direction periodically, meaning it alternates back and forth.
- The voltage rises and falls in a sinusoidal pattern over time, which makes it useful for long-distance power transmission, like the electricity in your home.
- AC is typically what you get from power outlets.
In summary:
- **DC**: Steady, unidirectional flow of voltage (e.g., batteries).
- **AC**: Voltage that changes direction periodically (e.g., power lines in homes).