Factors Affecting Resistance
A series of free Science Lessons for 7th Grade and 8th Grade, KS3 and Checkpoint Science in preparation for GCSE and IGCSE Science.
Factors Affecting Resistance
What factors affect resistance?
Resistivity
Length
Cross-sectional Area (thickness)
Investigate the factors affecting the resistance of a circuit.
Resistance Experiments
To measure the relationship between resistance and cross sectional area of a conductor.
Light-Dependent Resistor (LDR) Demo
Use multimeter to measure the resistance of a light-dependent resistor (LDR) that changes resistance when light hits it. When no light hits the LDR, the resistance is greater than 60,000 Ohms. When light hits the LDR, the resistance drops to about 3,000 Ohms.
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