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If the length of a wire in a circuit increases, does the voltage drop…
If the length of a wire in a circuit increases, does the voltage drop across it also increase?
Physics Concepts Involved
Ohms Law
Resistance of a wire
Voltage drops across resistive elements
Relationship between resistance, current, and wire length
Variables
Independent variable
Length of wire
Dependant variable
Voltage drop across the wire
Controlled Variables
Wire type and thickness
Power supply voltage
Temperature
Connections and materials
Safety considerations
Use low voltage DC supply
Don’t leave circuit powered too long
Ensure crocodile clips are secure to prevent sparks