https://phet.colorado.edu/en/simulation/faradays-law Any help would be appreciat
ID: 1596956 • Letter: H
Question
https://phet.colorado.edu/en/simulation/faradays-law
Any help would be appreciated!
1. Open Faraday’s Electromagnetic Lab. Investigate using the window called Pickup Coil. See if you can discover more things that effect induction and add them to your list.
2. In this simulation, there is another way to show that induction is happening. Explain why this method may not have been used in the simpler simulation.
4. Write a comparative paragraph to meet the third learning goal. Make sure to consider the strengths and weaknesses of each as an indicator of current.
5. Design an experiment to determine how the size and direction of the induced current will change when the conditions are varied. Collect data, make observations and record your information in a table.
6. Write a summary that demonstrates that you can meet the first two learning goals.
7. The magnet is not touching the electrons, yet something is causing them to move. Explain what you think is happening.
8. Research how generators and transformers are used. Explain how Faraday’s Law is applied and why the designs are practical and therefore widely used.
Here are the learning goals:
Identify equipment and conditions that produce induction
Predict how the current will change when the conditions are varied.
Compare and contrast how both a light bulb and voltmeter can be used to show characteristics of
the induced current.
Explain practical applications of Faraday’s Law
Explain what is the cause of the induction
Explanation / Answer
From the simulation
1. Things that effect induction
a. speed of movement of the magnet
b. path of the magnet
c. Number of loops in coil
d. single/multiple coils
e. Polarity of the magnet
2. In this experiemnt, there are multiple ways to know that induction is working
a. The light bulb
b. the Voltmeter
now, just using the light bulb does not help in experiments aimed to know the intensity of the induction, hence this method is used in simpler simulations, where as voltmeter is shown in complex ones
5. The experiment can be designed as under
set up an apparatus, and get measurememtn devices for measuring speed of the magnet, location of magnet
now, an experiment can be set up where the speed of motion of magnet is recorded against voltage
location of magnet while moving at this speed is recorded againt voltage
number of loops of coil are recorded against voltage
number of loops in one coil are recorded agains voltage
Polarity of the magnet is recorded against direction of voltage
such experiemts repeated at multiple different values would yield relationships between desired quantities
7. The magnet does not touch the electrons, but the moving magnet creates a changing magnetic field. A changing magnetic field is noting but an electric field from someone at rest with the moving frame, and hence this force is elperiemced by electrons causing them to move
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