Measurement and analysis of current and voltage in simple circuits allows us to formulate rules and predict unknown values.
The current in a parallel circuit splits into different branches then combines again before it goes back into the supply. When the current splits, the current in each branch after the split adds up to the same as the current just before the split.
Looking at the parallel circuit above, where the lamps have equal resistance - what is the reading at?
1) Position 1: \(0.2 A\), \(0.1 A\) or \(0.0 A\)
2) Position 2: \(0.2 A\), \(0.1 A\) or \(0.0 A\)
3) Position 3: \(0.2 A\), \(0.1 A\) or \(0.0 A\)
4) Position 4: \(0.2 A\), \(0.1 A\) or \(0.0 A\)
Position 1 = \(0.2 A\)
Position 2 = \(0.1 A\)
Position 3 = \(0.2 A\)
Position 4 = \(0.1 A\)