1. 11.3 Measuring the Properties of Simple Circuits
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Homework: Page 461 # 1, 4, 5, 6, 8

2. Key Concepts: (Page 461)
Circuit diagrams use standard symbols to represent the components of an electric circuit and their connections in the circuit.
At a series connection, there is only one path along which electrons can flow.
At a parallel connection, there is more than one path along which electrons can flow.
An ammeter measures the current and is connected in series.

3. A voltmeter measures potential difference and is connected in parallel between the terminals of a load.
Each pole connection on a meter must race back to the same type of terminal at the electrical source.
The potential difference across a battery of cells in series is the sum of the potential difference across each cell.

4. Circuit Diagrams: What is a circuit diagram?
It is diagram that uses standard symbols to represent the components in an electric circuit and their connections.

5. One Pathway or Multiple Pathways:
2. Compare a series circuit from a parallel circuit.
In a series circuit, there is only one path along which electrons can flow
In a parallel circuit, there is more than one path along which electrons can flow

6. An ammeter measures current at a particular location in a circuit
4. Why must an ammeter be connected in series with a load, rather than in parallel, to correctly measure the current through the load?
An ammeter measures current at a particular location in a circuit
Therefore, it measures the flow of electric charge (current) at the point where a meter is connected in the circuit and is connected in series

7. 5. What does a voltmeter measure?
A voltmeter measures the potential difference in V (volts) between 2 points on a circuit.
6. How is a voltmeter connected in a circuit?
It is connected in parallel to measure the potential difference across a load.

8. 7. What is the function of a multimeter?
It can be used as an ammeter or a voltmeter
When set to read current = connected in series
When set to read potential difference = connected in parallel