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Bar Magnet

Bar Magnet. Breaking a bar magnet in half will produce a single north magnetic monopole. a single south magnetic monopole. one north and one south monopole. two identical bar magnets. Feb 29, 2012. THE MAGNET SHOW. Question 1.

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Bar Magnet

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  1. Bar Magnet • Breaking a bar magnet in half will produce • a single north magnetic monopole. • a single south magnetic monopole. • one north and one south monopole. • two identical bar magnets. Feb 29, 2012

  2. THE MAGNET SHOW

  3. Question 1 • A charged particle moves and experiences no magnetic force. From this we can conclude • the particle must be massive • no magnetic field exists in that region of space • the particle is moving parallel to the magnetic field • the particle is moving perpendicular to the magnetic field

  4. Question 2 • A proton moves north in a magnetic field that is directed to the west. In what direction does the magnetic force act on the proton?

  5. Question 3 Two parallel straight wires each carry current in the same direction. What is the force (if any) between the wires.

  6. Question 4 • A wire carrying a current of 10 A flows horizontally from left to right. What is the magnitude and direction of the magnetic field from this current 10 cm above the wire?

  7. Question 5 • The magnetic field in the diagram is into the screen as shown. If a proton enters from the left, which way will it turn? x xxx x xxx x xxx x xxx v 

  8. Question 6 • The magnetic field in the diagram is out of the screen the as shown. If an electron enters from the left, which way will it turn? ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ v -

  9. Question 7 • The wire to the right carries current as shown. What is the direction of the magnetic force acting on the positive charge moving toward it? v  I

  10. Question 8 • A solenoid is 20 cm long and wound with 5000 turns. If a 5A current flows through it, what is the value of the magnetic field at the center of the solenoid?

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