Faradays Laws Of Induction

Concept: Physics (Electromagnetic Induction) - Faraday's Law of Induction.

Step 1: Identify the initial and final magnetic flux. Initial flux (since it acts at right angles). Final flux (once removed from the field).
• turns
• T
•

Step 2: Apply Faraday's Law. The induced emf is given by the rate of change of flux1093]: $ t $

Concept: Physics (Electromagnetic Induction) - Motional EMF and Terminal Velocity.

Step 1: Analyze the forces at terminal velocity. The net force on the wire becomes zero when it attains terminal velocity. At this point, the upward magnetic force equals the downward gravitational force: $ i e R e v B e = Bvl v $

Concept: The induced emf in a coil due to self-inductance is given by where
• = induced emf
• = self-inductance
• = rate of change of current

Step 1: Identify the given quantities.

Step 2: Find the rate of change of current.

Step 3: Substitute into the formula. Thus,