MDCAT Physics MCQ #827

MDCAT Physics MCQ #827

1. Question 1

   Q1. A solenoid is placed near a conducting wire. What is the reason behind the magnetic field generated in the solenoid?

   • A) The magnetic field is due to the flow of electrons in the solenoid.
   • B) The magnetic field is generated by the changing current in the solenoid.
   • C) The magnetic field is due to the presence of a permanent magnet near the solenoid.
   • D) The magnetic field is due to the thermal expansion of the solenoid.

   Answer: The magnetic field is generated by the changing current in the solenoid.

   Explanation: The magnetic field in the solenoid is generated by the changing current due to electromagnetic induction.