Series and Parallel Circuit Worksheet



Solve the following problems.

1. Calculate the total resistance for a 650 ohm, a 350 ohm, and a 1000 ohm resistor connected in series.

2. Calculate the total resistance for ten 120 ohm resistors in series.

3. Three 1.2 ohm lamps are connected in series and connected to a 3 volt battery. Calculate the total current in the circuit.

4. How does the current behave in a series circuit?

5. What 4 things affect a wire’s resistance?

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Fill out the chart below – indicate how each is found in a series circuit.

| |Formula |How to find it |

|Current | | |

| | | |

|Resistance | | |

| | | |

|Voltage | | |

| | | |

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What happens to the current as more lamps are added to a circuit?

Why can a bird perch on electrical wires?

Calculate the power of an electric hairdryer that uses 110 V and 30 A.

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