When you bring two magnets near each other sometimes they stick together and som

Question

When you bring two magnets near each other sometimes they stick together and sometimes they repel each other. Explain this behavior using the concept of a Magnetic field. Describe the magnetic field around a permanent magnet. If you cannot find a picture in your textbook you can use http: //phet.colorado.edu/en/simulation/faradays-law to see the magnetic field lines. Write down the Kirchhoff's Voltage/Loop Law for the right loop of the circuit shown below in terms of the I's, V's and R's provided. Notice that current directions have been supplied.

Explanation / Answer

(2)When the like poles , both North or both South are brought together, they repel each other. This is because the magnetic field lines exert lateral pressure on each other when unlike poles are brought close.

When the unlike poles are brought close to each other, the magnetic field lines contract and thus they attract each other.

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