Solution Found!
When a magnet is thrust into a coil as in Figure 23.4(a),
Chapter 23, Problem 2(choose chapter or problem)
Problem 2CQ
When a magnet is thrust into a coil as in Figure 23.4(a), what is the direction of the force exerted by the coil on the magnet? Draw a diagram showing the direction of the current induced in the coil and the magnetic field it produces, to justify your response. How does the magnitude of the force depend on the resistance of the galvanometer?
Questions & Answers
QUESTION:
Problem 2CQ
When a magnet is thrust into a coil as in Figure 23.4(a), what is the direction of the force exerted by the coil on the magnet? Draw a diagram showing the direction of the current induced in the coil and the magnetic field it produces, to justify your response. How does the magnitude of the force depend on the resistance of the galvanometer?
ANSWER:
Solution 2CQ
When a magnet is thrust into a coil, due to the changing magnetic field an emf is induced in the coil which causes a flow of current in the coil.
Also, as a magnetic field due to the current in the coil is induced. This induced magnetic field resists the motion of the magnet towards the coil and hence exerts a forc