Physics
Relation Between Length And Resistance
Investigate the relation between wire length and resistance using a potentiometer.
Mission
Investigate the relation between length and resistance using potentiometer
Curriculum Alignment
| Standard | Syllabus code | Topic | Coverage | Grades | |
|---|---|---|---|---|---|
| NGSS | Weak | 9–12 | |||
| British / IGCSE | 0625 §4.2.4 | CAIE IGCSE Physics 0625 — 4.2.4 Resistance (Core #3 qualitative + Supplement #5 R∝L, R∝1/A) | Full | 9–10 | |
| IB | DP B.5 | DP Physics — Theme B.5 Current and circuits (resistivity ρ=RA/L) | Full | 11–12 | |
| CBSE | Class 10 Ch 12 | CBSE/NCERT Class 10 Science — Ch 12 Electricity ('Factors that affect the Resistance of a Conductor') | Full | 10–10 | Prescribed practical |
| AERO / AP | AP Physics 2 Unit 11.3 | AP Physics 2 — Unit 11.3 Resistance, Resistivity, and Ohm's Law (R=ρL/A) | Full | 11–12 |
Variables
What you change
- Wire Length
What you measure
- Voltage Drop
What you keep constant
- Wire cross section
- The voltage of the power source
- Temperature of wire
What You'll Need
- Breadboard 400 Tie Point
- Arduino Uno
- I2C LCD
- 25V Voltage Sensor Module
- Slide Potentiometer Module
- 6V Battery Pack, 4x AA
- Resistor
Estimated Time
Virtual mode 8 minTest mode 12 minExercise mode 11 min
Mind-Blowing Fact
Shake the day up.
As earthquakes can alter the distribution of the earth's mass, it may cause it to rotate at a different rate. This can change the length of a day.
How You Can Run It
Virtual modeTest modeExercise modeView-only modeAccessibility modeTobii eye trackingVoice commandsAmericanBritishIB