Physics
Current in Resistors connected in Parallel and Series Jointly
Measure current for a set of resistors in series and parallel.
Mission
Measure the electric current for a set of resistors in series and parallel
Curriculum Alignment
| Standard | Syllabus code | Topic | Coverage | Grades | |
|---|---|---|---|---|---|
| NGSS | HS-PS3-6 | HS-PS3-6 (Ohm's law; series/parallel circuit analysis) | Full | 9–12 | |
| British / IGCSE | 0625 §4.3.2 | CAIE IGCSE Physics 0625 — 4.3.2 Series and parallel circuits (combined network, Core+Supplement) | Full | 9–10 | |
| IB | DP B.5 | DP Physics — Theme B.5 Current and circuits (circuit analysis) | Full | 11–12 | |
| CBSE | Class 10 Ch 12 | CBSE/NCERT Class 10 Science — Ch 12 Electricity (mixed series-parallel numericals) | Full | 10–10 | |
| AERO / AP | AP Physics 2 Unit 11.4 | AP Physics 2 — Unit 11.4/11.5 Compound DC Circuits | Full | 11–12 |
Variables
What you change
- Resistance value
What you measure
- Current
What you keep constant
- Wire length
- Wire cross section
- Battery voltage value
- Temperature of wire
Equations
It = Total current in circuit (A)
I_2 = Current passing through second resistor (A)
I_3 = Current passing through third and fourth resistors (A)
V_Bat ≈ 6 Volts
R_1, R_2, R_3, R_4 = Resistors (ohm)
It=V_Bat*(\frac{R_2+R_3+R_4}{R_2(R_3+R_4)+R_1(R_2+R_3+R_4)})
I_2 =(\frac{V_Bat}{R_2})*(1- R_1\frac{R_2+R_3+R_4}{R_2(R_3+R_4)+R_1(R_2+R_3+R_4)})
I_3 =(\frac{V_Bat}{R_3+R_4})*(1- R_1\frac{R_2+R_3+R_4}{R_2(R_3+R_4)+R_1(R_2+R_3+R_4)})
What You'll Need
- Breadboard 400 Tie Point
- Arduino Uno
- I2C LCD
- Current Sensor ACS712
- 6V Battery Pack, 4x AA
- Resistor
Estimated Time
Virtual mode 10 minTest mode 14 minExercise mode 13 min
Mind-Blowing Fact
Eel-ectrify!
Eels can produce a shock of 600 volts.
How You Can Run It
Virtual modeTest modeExercise modeView-only modeAccessibility modeTobii eye trackingVoice commandsArduino integrationAmericanBritishIB