Where there are junctions, the current splits at circuit junctions, but the total current will be the same in order to conserve charge.At a junction, electrons can either go through one branch or the other. The proportions of electrons that travel through each branch depend on the resistance of each branch and are inversely proportional.Fewer electrons go through the higher resistance branch.
On emerging from the branches, the electrons join together again so the sum of all the currents from the branches must add up to the sum of the currents going into the branches.
Currents in Parallel Circuits
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Specification: Edexcel Physics (8PH0), AS-level, Topic 3: Electric Circuits. Topic: Electrical Circuits.
More in Electrical Circuits
- Current Rule
- Currents in Series Circuits
- Voltage Rule
- Voltages in Series Circuits
- Voltages in Parallel Circuits
- Resistors in Series and Parallel
- Resistors - Combinations Question 1
- Resistors - Combinations Question 2
All 22 lessons in Electrical Circuits · All Edexcel AS-level Physics topics