Series circuits

SERIES CIRCUITS

Aim: To determine how the total resistance of a circuit changes as lamps are added in series.

Method:

1. Construct (physically, or using a circuit simulator at THIS LINK) a circuit containing one lamp as you have done previously. You must be able to measure the current flowing in the circuit. Record the current and note the brightness of the light.

2. Add a second lamp in series and again measure the current and compare the brightness of the light to part 1.

3. Add a 3rd lamp in the same way. Record

4. Disconnect one of the lamps. What happens to the other lamps?

Discussion:

What happened to the brightness of the lights in the circuit as you added more lights?
What happened as a light "blows"? Are these circuits useful for home lighting circuits?

Conclusion:

Watch THIS VIDEO as a summary of these ideas

SERIES CIRCUITS (for top class)

Aim: To determine how the total resistance of a circuit changes as resistors are added in series.

Method:

1. Construct (physically, or using a circuit simulator at THIS LINK) a circuit containing one resistor as you have done previously. You must be able to measure the current through it and the voltage across it. Record the voltage and current.

2. Add a second resistor in series and again measure the current and the voltage (this time across both resistors). Record voltage and current.

3. Add a 3rd resistor in the same way.

Results:

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