Presentation on theme: "11.3 Measuring the Properties of Simple Circuits"— Presentation transcript:
111.3 Measuring the Properties of Simple Circuits (Pages )Homework: Page 461 # 1, 4, 5, 6, 8
2Key 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.
3A 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.
4Circuit Diagrams: What is a circuit diagram? It is diagram that uses standard symbols to represent the components in an electric circuit and their connections.
5One 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 flowIn a parallel circuit, there is more than one path along which electrons can flow
6An 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 circuitTherefore, it measures the flow of electric charge (current) at the point where a meter is connected in the circuit and is connected in series
75. 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.
87. What is the function of a multimeter? It can be used as an ammeter or a voltmeterWhen set to read current = connected in seriesWhen set to read potential difference = connected in parallel