Topic 10- Electricity- CIRCUIT COMPONENTS

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Physics

Circuits

GCSE Physics

Edexcel

Last updated 9:50 PM on 5/1/24
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12 Terms

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Cell/battery

provides the circuit with a source of potential difference (energy per unit charge)

<p>provides the circuit with a source of potential difference (energy per unit charge)</p>
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switch

turns the circuit on (closed) or off (open)

<p>turns the circuit on (closed) or off (open)</p>
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fixed resistor

a resistor that limits the flow of current. cannot change.

<p>a resistor that limits the flow of current. cannot change.</p>
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variable resistor

a resistor with a slider that can be used to change its resistance.

<p>a resistor with a slider that can be used to change its resistance.</p>
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thermistor

the resistance depends on its temp. As temp increases, resistance decreases (voltage increases)

<p>the resistance depends on its temp. As temp increases, resistance decreases (voltage increases)</p>
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LDR (Light- dependent resistor)

resistance depends on light intensity. As the light intensity increases, its resistance decreases (voltage increases)

<p>resistance depends on light intensity. As the light intensity increases, its resistance decreases (voltage increases)</p>
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motor

converts electrical energy into kinetic energy

<p>converts electrical energy into kinetic energy</p>
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diode

allows current to only flow in one direction. Converts AC to DC current

<p>allows current to only flow in one direction. Converts AC to DC current</p>
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LED (light-emitting diode)

equivalent to a diode emits light when a current passes through

<p>equivalent to a diode emits light when a current passes through</p>
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ammeter

measures CURRENT in a circuit. Connected in SERIES.

<p>measures CURRENT in a circuit. Connected in SERIES.</p>
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voltmeter

measures POTENTIAL DIFFERENCE (voltage) of an electrical component. Connected in PARALLEL with the component

<p>measures POTENTIAL DIFFERENCE (voltage) of an electrical component. Connected in PARALLEL with the component</p>
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Lamp

converts electrical energy into visible light radiation

<p>converts electrical energy into visible light radiation</p>