Series Circuits:
In a series circuit, there is only one path for the current to take. The diagram above shows a battery (consisting of 2 cells) connected to 2 bulbs wired in series. If one of the bulbs in the circuit fails (blows), then the circuit will be open, and the current will stop flowing.
1. How many amps in the circuit? - 5 amps
2. How many amps at A1 and A2? - 5 amps
3. How many amps at 1,2,3,4? - 5 amps
Parallel Circuits:
In a parallel circuit, the current has more than one way of moving around the circuit. If one of the bulbs fails (blows), the other one will still have a current through it and will still glow.
1. A1 = 3
A2 = 4
2. A1 = 3
A2 = 3
3. A1 = 3
A2 = 4
A3 = 12
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