Understanding Electrical TransmissionDemonstration B2 A Guide to the National Grid Transmission Model Demonstration B2 Generating electricity.

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Presentation transcript:

Understanding Electrical TransmissionDemonstration B2 A Guide to the National Grid Transmission Model Demonstration B2 Generating electricity

Understanding Electrical TransmissionDemonstration B2 A Guide to the National Grid Transmission Model Task 1 How does the generator work? 1. How does the generator work? What effect does the magnet have on the coil? 2. What pattern can you see on the datalogger? What does this show?

Understanding Electrical TransmissionDemonstration B2 A Guide to the National Grid Transmission Model 3. What is the highest value of the output voltage? 4. How can you work out the frequency from this display? The model is now run at a lower speed, then a higher speed. 5. How does slowing down or speeding up the generator affect the pattern on the datalogger display? 6. What effect does the generator speed have on the output voltage? 7. What effect does the generator speed have on the output frequency?

Understanding Electrical TransmissionDemonstration B2 A Guide to the National Grid Transmission Model Task 2 Looking at the output from other sources 8. In what way is the output from a battery different from that of the generator? 9. Does the output from the a.c. power supply look similar to the output from the generator? What is its frequency? 10. How does the output from the d.c. power supply compare to the battery?

Understanding Electrical TransmissionDemonstration B2 A Guide to the National Grid Transmission Model Task 3 Making voltage measurements 11. What is the maximum output voltage as shown on the datalogger? 12. What is the output voltage as recorded by the multimeter? Is this the same or different from the maximum voltage shown on the datalogger display? Why is this?

Understanding Electrical TransmissionDemonstration B2 A Guide to the National Grid Transmission Model Task 4 Making frequency measurements 13. What is the reading on the multimeter? How does this compare to the value you worked out from the datalogger?