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Electricity KS3 Y7
- Electric current
- The flow of electrical charge
- Measured in amps or amperes
- Always placed in series
- In a series circuit, the current is the same everywhere
- Series means all components are connected
- Parallel means all components aren't connected
- The flow of electrical charge
- Resistance
- The more resistance in a circuit
- The lower the components will work
- The less resistance in a series
- The better the component will work
- The way the cell faces matters
- The cell will not work if it is reversed biased
- The more resistance in a circuit
- Diodes
- Led's
- Ldr's
- The ldr's need resistance or their will be too less resistance
- If the current is flowing against an led it won't work
- Ldr stands for Light dependent resistor
- Led stands for light emitting diode
- An ldr has high resistance in the light
- In the dark, an Ldr's resistance is low
- A SPDT has two switches which control two circuits
- Led's
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