List 4 factors that affect the resistance in a circuit
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material e.g. copper has lower resistance than steel.
length - longer wires have greater resistance.
thickness - smaller diameter wires have greater resistance.
temperature - heating a wire increases its resistance.
length - longer wires have greater resistance.
thickness - smaller diameter wires have greater resistance.
temperature - heating a wire increases its resistance.
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• Resistivity of the resistor
• Length of the resistor
• Area of the resistor
• Temperature
• Length of the resistor
• Area of the resistor
• Temperature
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