What happens when insulated materials are rubbed against eachother? What happens to the electrons?
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Card 20
Front
If a material gains electrons, what charge does it have? What happens if this is the other way round?
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Card 21
Front
What is the electric current.
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Card 22
Front
What is the symbols for all of these: open/closed switch, cell , battery, diode, resistor, variable resistor, lamp, fuse, voltmeter, ammeter, thermistor,ldr,LED
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Card 23
Front
Explain what a graph would look like when a current goes through a resistor at a constant temperature?
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Card 24
Front
What is resistance measured in?
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Card 25
Front
Explain what a graph would look like when the resistnace of the filament bulb increases.
