A coil is placed in a changing magnetic field. What is the name of the phenomenon that causes a current to flow in the coil?
Q1. A coil is placed in a changing magnetic field. What is the name of the phenomenon that causes a current to flow in the coil?
Answer: Electromagnetic induction
Explanation: Electromagnetic induction is the phenomenon where a changing magnetic field induces an electric current. Option B fails because resonance involves matching frequencies, not changing fields.