What Happens when a Bar Magnet Approaches a Conducting Loop?

In summary, the conversation discusses Fig.35, which shows a conducting loop X hung on a horizontal rail. A bar magnet PQ approaches the loop from the right, and the question is whether the loop will be repelled or attracted and if its area will increase or decrease. The correct answer is C, where regardless of whether P is a N-pole or S-pole, the loop will be repelled to the left and its area will increase slightly.
  • #1
april_angela
7
0
Fig.35 shows a light and flexible conducting loop X freely hung on a smooth horizontal rail. A
bar magnet PQ approaches the loop from the right. Which one of the following descriptions
about this process is correct?



A If P is a N-pole, the loop will be repelled to the left and its area will increase slightly.
B If P is a S-pole, the loop will be attracted to the right and its area will decrease slightly.
C No matter whether P is a N-pole or a S-pole, the loop will be repelled to the left and its area
will increase slightly.
D No matter whether P is a N-pole or a S-pole, the loop will be repelled to the left and its area
will decrease slightly.

can anyone help me with this qns? I've attached the diagram alrdy. I am not sure if the area will increase or decrease. and why?
 

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  • #2
You should post this in the Homework section. That will ensure you get the best help for your question.
 
  • #3
thanks :)
 

1. What is electromagnetic induction?

Electromagnetic induction is the process by which a changing magnetic field induces an electric current in a conductor.

2. What are the applications of electromagnetic induction?

Some applications of electromagnetic induction include generators, transformers, and induction cooktops.

3. How does electromagnetic induction work?

Electromagnetic induction works by the principle of Faraday's law, which states that a changing magnetic field induces an electric current in a conductor. This is due to the movement of electrons in the conductor in response to the changing magnetic field.

4. What factors affect the strength of the induced current in electromagnetic induction?

The strength of the induced current in electromagnetic induction is affected by the strength of the magnetic field, the speed at which the magnetic field changes, and the number of turns in the conductor.

5. Can electromagnetic induction be used to generate electricity?

Yes, electromagnetic induction can be used to generate electricity. This is the principle behind generators, where a changing magnetic field induces an electric current in a coil of wire, which can then be used to power electrical devices.

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