Measuring Current Laboratory
Purposes:
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To observe and measure the flow of current in a series circuit
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To learn how to properly use an ammeter to measure current in a circuit
Materials & Apparatus:
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batteries and battery holders
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ammeter
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connecting wires with alligator clips
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light bulbs and base holders
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switch (optional)
Procedure:
a) single bulb
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Set up the following circuit diagram
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Draw the equivalent circuit diagram using proper symbols
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Measure the current in the circuit
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Record the value of current
Current = __________________
b) two cells in series
Repeat steps 1 to 4 above
Current = _______
Questions:
1. What are the general rules for connecting ammeters in a circuit.
2. What can you conclude about the current in a series circuit?
3. Questions 1-7 p327 (your textbook)