A Sheet of Copper Is Pulled at Constant Velocity V

question 68

Multiple Choice

A sheet of copper is pulled at constant velocity v from a region that contains a uniform magnetic field. At the instant shown in the figure, the sheet is partially in and partially out of the field. The induced emf in the sheet leads to the eddy current shown. Which one of the following statements concerning the direction of the magnetic field is true?

• A)The magnetic field points to the right.
• B)The magnetic field points to the left.
• C)The magnetic field points into the paper.
• D)The magnetic field points out of the paper.
• E)The direction of the magnetic field cannot be determined from the information given.