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 This Homework requires GRAPH PAPER! |
QUESTION 1. |
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| a) | |||
| Harris is an electrician and is installing the lighting circuit in a newly built house. | |||
| b) | |||
| What type of circuit will he use? | |||
| c) | |||
| What is the advantage of using this type of circuit for wiring the house? | |||
| d) | |||
| He wants to measure the current in the circuit when all the lights are switched on. What should he use to do this? | |||
QUESTION 2. |
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| In your jotter, draw out the circuit below and add a component to measure the current in the bulb. Make sure you use the correct circuit symbol. | |||
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QUESTION 3. |
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| Faisil set up the circuit below. | |||
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| a) | |||
| He measured the current in each lamp and found it to be 0.2 amperes in both. What is the current from the battery? |
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| b) | |||
| He next measured the voltage across lamp 2, which was found to be 1.5V. If lamp 1 and lamp 2 are identical, what is the voltage supplied by the batteries? | |||
QUESTION 4. |
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| Lyndsey and Ambreen set up a circuit to investigate the relationship between voltage and current. |
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| They varied the voltage of the supply and measured the current in the circuit. Their results are shown below. |
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| a) | |||
| Draw a line graph of the results. Use the graph paper supplied by your teacher. Ensure you choose appropriate scales and your axes have labels and units! | |||
| b) | |||
| What would the current be if the voltage was set to 5 volts? | |||
