Measuring Current and Voltage

Current and Voltage

http://www.bbc.co.uk/schools/ks3bitesize/science/energy_electricity_forces/electric_current_voltage/activity.shtml

Introduction to Circuits Activity

http://www.bbc.co.uk/scotland/learning/bitesize/standard/physics/using_electricity/resistance_activity.shtml

Measuring Current

Measuring CurrentUse an ammeter to measure the current through the lamp.

Draw a circuit diagram with the ammeter connected correctly.

How to set up an… Ammeter

A

Measuring Current – Series Circuit

Measure the current through: 1.The Battery2.Bulb 13.Bulb 2

Measuring Current – Parallel Circuit

Measure the current through: 1.The Battery2.Bulb 13.Bulb 2

Measuring Voltage

Measuring Voltage

Use a voltmeter to measure voltage across the lamp.

Draw a circuit diagram with the voltmeter connected correctly

How to set up a… Voltmeter

V

Effect of Number of Cells on Voltage?

Measuring Voltage – Series Circuit

Measure the voltage across: 1.The Battery2.Bulb 13.Bulb 2

Measuring Voltage – Parallel Circuit

Measure the voltage across: 1.The Battery2.Bulb 13.Bulb 2

Measuring Current and VoltageMeasure the current through bulb 1 and the voltage

across bulb 2.

Measuring Current and Voltage

Draw a circuit diagram

Measuring Current and Voltage

Voltage and Current - Graph

Display these results as a line graph.

What is the relationship between voltage and current?

Voltage