When a current is induced by a changing magnetic field B₁, the current always produces a second magnetic field B₂ such that A) B₁ and B₂ completely cancel each other out. B) B₁ and B₂ combine to give a stronger magnetic field than B₁ alone. C) B₁ and B₂ combine to give a weaker magnetic field than B₁ alone. D) It is not possible to tell whether the combined field is stronger or weaker than B₁ without knowing how B₁ is changing.

Question

Quizplus · Accepted Answer

The behavior of the induced magnetic field (B₂) in relation to the original changing magnetic field (B₁) depends on the nature of the change in B₁, as per Lenz's Law. This law states that the induced field will oppose the change in the original field, but the overall strength of the combined field depends on specific conditions of the change, making it impossible to generalize without more information.

When a Current Is Induced by a Changing Magnetic Field