A loop of wire lies motionless on a flat,horizontal surface in the presence of a uniform and constant magnetic field.When is the magnetic flux through the area interior to the loop the largest?
A)when the magnetic field is parallel to the area interior to the loop
B)when the magnetic field is perpendicular to the area interior to the loop
C)when the magnetic field is only exists exterior to the loop
D)None are correct.

Question

Quizplus · Accepted Answer

The magnetic flux through a loop is given by the product of the magnetic field strength and the area enclosed by the loop. The maximum magnetic flux will occur when the magnetic field lines are perpendicular to the area enclosed by the loop, as this maximizes the number of field lines passing through the loop. Therefore, choice B is correct. Choices A and C are incorrect because they imply that the magnetic field lines are not passing through the area enclosed by the loop, which would result in zero magnetic flux. Choice D is incorrect because there is a correct answer among the given choices.

A Loop of Wire Lies Motionless on a Flat,horizontal Surface