# Electricity

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Static Electricity
When 2 insulators rub together electrons are scraped off one and is dumped on the other, Electrons = Negatively Charged leaving positive charge on one and negative on the other
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Like Charge
Repel
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Opposite Charges
Attract
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Current
Rate of flow of charge around circuit, Measured in Amps
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Equation for Current
Charge = Current x Time
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Resistor in I-V Graph
Directly Proportional to current and voltage
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Bulb in I-V Graph
Obeys Ohm's Law fro the middle bit but then current increase = resistance increases so no longer obeys Ohm's Law
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Diode in I-V Graph
Obeys Ohm's Law for 1/2
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Resistance
Increase with Temperature, Heat energy causes ions in conductor to vibrate more so harder for current to flow through
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LDR's
As light increases, Resistance decreases
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Thermistor's
As temperature increases, Resistance decreases
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PIV Equation
Power= Current x Voltage
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PET Equation
Energy= Power x Time
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## Other cards in this set

Repel

Like Charge

Attract

### Card 4

#### Front

Rate of flow of charge around circuit, Measured in Amps

### Card 5

#### Front

Charge = Current x Time