Lab: Magnetic interactions Make predictions for the following five situations ba

Question

Lab: Magnetic interactions Make predictions for the following five situations based on what you observed in part A. Check your answers only after you have made all five predictions. B. The magnet is turned so that the south pole is near the wire while the switch is closed. Prediction Observation: 1. 2. The leads to the power supply are reversed (consider both orientations of the magnet). Prediction: Observation: 3. The north pole of the magnet is held near the wire but the switch remains open. Prediction: Observation The north pole of the magnet is held: (a) closer to the wire and (b) farther from the wire. Prediction: Observation 4. The magnet is turned so that it is parallel to the wire while the switch is closed. Prediction Observation 5. Resolve any discrepancies between your predictions and your observations. (Hint: Recall the right- hand rule used to determine the direction of the force exerted by a magnetic field on moving charges.) II. The magnetie field of a current-carrying wire A. Suppose you place a small magnet in a magnetic field and allow it to rotate freely. How will the magnet orient relative to the external magnetic field lines? Ilustrate your answer below.

Explanation / Answer

1-

Predication - the current through the wire have direction of segment nearest from the magnet.

Obersation - the current through the wire have direction of segment farest from the magnet. because when magnetic magnet rotates as ends of the magnet , move as indicated by the arrows. the dirction of net force is exterted from direction of net magnetic postion shown

2-

Predication - when power supply is reversed than direction is also reversad

obersation - the filed direction is also reversed because it follow right hand rule .

3-

Predication -

the current through the wire have direction of segment farest from the magnet.

observation- the current through the wire have direction of segment nearset from the magnet. it also follw the right hand rule

4-(part A is needed)

Predication - the diection of force oppsoite to each other

Obseration - the direction of force is same in the both case bacuase its follow the flaming right hand rule .

5

Predication- the direction of magntic filed line we can observed

Observation-

when the switch is closed the magntic line is towards spraed through in stight line and its also follow flamig right rule . and current carry to start to south pole to north pole

Part A is needed is we can easily apporch the problem

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