Current in resistors connected in parallel
The effect of adding resistors in parallel on the current.
Part of the course: Electricity & Circuits I — DC Fundamentals
Mission
The effect of adding resistors in parallel on the current.
Variables
What you change
- Resistance
What you measure
- Current
What you keep constant
- Wire length
- Wire cross section
- Battery voltage value
- Temperature of wire and environment
Equations
It = Total current in circuit (A)
I_1 = Current passing through first resistor (A)
I_2 = Current passing through second resistor (A)
I_3 = Current passing through third resistor (A)
V_Bat ≈ 6 Volts
R_1, R_2, R_3 = Resistors (ohm)
It=V_Bat * (\frac{R_1*R_2+R_3(R_1+R_2)}{R_1*R_2*R_3})
I_1 =\frac{V_Bat}{R_1}
I_2 =\frac{V_Bat}{R_2}
I_3 =\frac{V_Bat}{R_3}
What You'll Need
- Breadboard 400 Tie Point
- Arduino Uno
- I2C LCD
- Current Sensor ACS712
- 6V Battery Pack, 4x AA
- Resistor
How You Can Run It
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