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1. In what direction are the magnetic field lines surrounding a straight wire carrying a current that is moving directly toward you?

2. Suppose you have three iron rods, two of which are magnetized but a third is not. How would you determine which two are magnets without using any additional object?

3. Can you set a resting electron into motion with a magnetic field? With an electric field?

4.Explain why s strong magnet held near a television screen causes the picture to become distorted. Also, explain why the picture sometimes goes completely black where the field is the strongest.