need help with physics lab question. Thank you!! - explain why the wire behaves
ID: 250234 • Letter: N
Question
need help with physics lab question. Thank you!!
- explain why the wire behaves as it does?
In the demonstration section of the lab there is a thin wire connected to a power supply. Current through the wire runs between the poles of a very powerful U-magnet. The north and south sides of the magnet are marked on the magnet. Align the magnet so that if you were looking down on it from up above. it would match the picture to the right: Run a small current to the right through the wire. Does the wire move up out of the magnet or down into the magnet? Run a small current to the left through the wire. Does the wire move up out of the magnet or down into the magnet? Explain why the wire behaves as it does.Explanation / Answer
When current flow throgh the wire , its mean charges inside the wire are moving . Charges in motion always produces magnetic field around it. When charges are moving in the wire an electric field is established and this magnetic field will interact with the external applied field. So resultant force is established. According to the fleming left hand rule. Put your left hand in such away yours middle finger, point finger and thumb are mutually perpendicular to each other. Middle figner will show the direction of current , point figner will show the direction of magnetic feild and thumb will be the direction of force. Therefore in ist case force is upward and in secod case force is downward. Apply Fleming L.H.R. you will get this result.
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