2736817
Descripción
Mapa Mental por lillycherriman, actualizado hace más de 1 año
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Creado por lillycherriman
hace más de 9 años
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Electrical Circuits
- Electric current flows in a circuit.
- Current
- An ammeter is used to measure current.
- Current is measured in amps.
- The current is the same all the way around a series circuit.
- An ammeter is used to measure current.
- Circuits
- A complete circuit is needed.
- Parallel circuits.
- Series circuit
- Circuit symbols are used to draw circuit diagrams.
- Bulb
- Switch
- Cells
- Bulb
- Parallel circuits.
- A complete circuit is needed.
- Voltage
- Voltage pushes the current around the circuit.
- Voltage is produced by a cell. It is measured in volts.
- Two or more cells make a battery.
- The first cell was made by Alessandro Volta.
- Luigi Galvani discovered that nerves carry electric current around the body.
- Voltage pushes the current around the circuit.
- Resistors
- Resistors reduce the current.
- Variable resistors can be used as dimmer switches.
- These change the resistance.
- Resistors reduce the current.
- Stop Current
- A fuse melts to stop too high a current from flowing.
- Circuit breakers can be used instead of fuses.
- There are hazards when using mains electricity in the home.
- A fuse melts to stop too high a current from flowing.
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