Magnets and Magnetic Fields Video Lessons

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Problem: Which of the following statements are true for magnetic field lines? Check all that apply.A) Magnetic field lines are close together in regions of space where the magnitude of the magnetic field is weak, and they are farther apart in regions where it is strong.B) Magnetic field lines point in the direction of the magnetic force acting on a charge.C) Magnetic field lines can never intersect.D) Magnetic field lines form closed loops. They don't "begin" or "end" on charges.E) At every point in space, the magnetic field vector at that point is tangent to the magnetic field line through that point.

FREE Expert Solution

A) False. Magnetic field lines are close together in regions of space where the magnitude of the magnetic field is strong, and they are farther apart in regions where it is weak. For example, close to the pole of a magnet the field lines are close together and the field is strong.

B) False. The direction of the magnetic  force on a charge is perpendicular to the direction of magnetic field lines.

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Problem Details

Which of the following statements are true for magnetic field lines? Check all that apply.

A) Magnetic field lines are close together in regions of space where the magnitude of the magnetic field is weak, and they are farther apart in regions where it is strong.

B) Magnetic field lines point in the direction of the magnetic force acting on a charge.

C) Magnetic field lines can never intersect.

D) Magnetic field lines form closed loops. They don't "begin" or "end" on charges.

E) At every point in space, the magnetic field vector at that point is tangent to the magnetic field line through that point.

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