Here is Induction Experiment.... My question is... 1. What was the purpose inser

Question

Here is Induction Experiment....

My question is...

1. What was the purpose inserting the iron rod between both coils?

And here is procedure just in case

PROCEDURE 1. Use the modified digital mass scale to measure the mass of the magnet. 2. Construct the first circuit demonstrated by the instructor. 3. Start up the laptop and open the PHYS 4B LABS folder on the desktop 4. Double-click on the Induction Part 1.cap file. 5. Carefully displace the magnet and allow it to undergo simple harmonic oscillation through the inductor coil Simultaneously, click on the red "Record" button 6. After a few oscillations click on the red "Stop" button 7. Highlight the appropriate data points and insert a Sine trendline 8. Print out a copy of this graph 9. Close the Induction Part 1.cap file. 10. Double-click on the Induction-Part 2.cap file. 11. Construct the second circuit as demonstrated by the instructor. 12. Use the Vernier caliper to make the following measurements: First co length and width Second coil diameter 13. Click on the "On" button. 14. Record the RMS Voltage for the load. 15. Click on the "Off" button. 16. Remove the primary coil and replace it with a different co Record the number of loops for this new co 17. Repeat the RMS voltage measurement for the new circuit 18. Repeat this process for the remaining primary coils. 19. Edit the PASCO Capstone graph of RMS voltage versus number of secondary loops. Insert a linear trendline to the data

Explanation / Answer

Iron core gets easily magnetized and hence most of the magnetic field lines passes through it. The iron core when inserted in a single inductor aligns the lines parallel to the axis while when inserted between two coils it couples the magnetic field produced by one to the another.

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