Factors Affecting Resistance
Explore Material, Length, Area, and Temperature
Control Panel
50 cm
5 mm²
20 °C
Switch
Open
Open
Closed
Data
Resistance (R)
600.00 Ω
R = 60 × (50/5) × (1 + 0.0004×ΔT)
Current (I)
0 mA
I = V / R = 6 / 600.00
Conclusions
Resistance Law: R = ρL/S
- •Material: Different materials have different resistivities (ρ). Higher resistivity = greater resistance.
- •Length: Resistance is proportional to length. Longer conductor = greater resistance.
- •Area: Resistance is inversely proportional to cross-sectional area. Larger area = smaller resistance.
- •Temperature: For most metals, higher temperature = greater resistance.