What Components Do-Q&A- AQA GCSE Electronics-Revision

What is a diode?

A diode is a component which allows current to flow through it in one direction ONLY

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What is a resistor?

A resistor is a component which is used to restrict or limit the flow of current in an electrical circuit

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What do 1.Variable Resistors and 2.Light Dependent Resistors do?

1. Variable Resistors-A variable resistor is a resistor which you can change the resistance of. 2. Light-Dependent Resistor (LDR)- Changes the resistance according to the amount of light. The more light the lower the resistance.

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What is a capacitor?

A capacitor is a component which is used to store charge

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What is a switch?

A switch is a sensor that has to be activated by something outside of the component e.g. you,water level

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What is a transistor?

A transistor is an electronic switch and amplifier

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What is a thyristor?

A thyristor is a component which can be used to create a latching circuit

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What is an Integrated Circuit (IC)?

A IC is a component which has a circuit inside of it (made up of resistors, transistor etc.) which requires outside components to work

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What is a Operational Amplifier (Op Amp)?

A Op Amp is a IC which is used to amplify small differences between two input voltages

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What is a logic gate?

A logic gate is a IC which makes decisions based on the number of inputs

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What is a microcontroller?

A microcontroller is an IC which can be programmed to respond to a number of inputs to control a number of outputs

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What Components Do-Q&A- AQA GCSE Electronics-Revision

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