A coil of wire is placed in a magnetic field. Which phenomenon is observed as the coil rotates?
Q1. A coil of wire is placed in a magnetic field. Which phenomenon is observed as the coil rotates?
Answer: A decrease in magnetic flux
Explanation: As the coil rotates, the magnetic flux through the coil decreases, inducing an electromotive force and an electric current. The other options do not describe the phenomenon correctly.