A light, friction-free guide supports a metallic strip of length 0.40 m and mass 0.10…
PHYSICS · Multi-part · AP · Physics 2: Algebra-based · Magnetism and Electromagnetism · Magnetism and Electromagnetism
Problem
A light, friction-free guide supports a metallic strip of length 0.40 m and mass 0.10 kg so that the strip can slide horizontally without resistance. The strip carries a current of 3.5 A at right angles to a uniform magnetic field of 0.45 T directed vertically upward. The strip is released from rest and allowed to move a distance of 0.50 m under the action of the magnetic force.
(a) Calculate the work done by the magnetic force on the strip during the 0.50 m displacement.
(b) What is the kinetic energy gained by the strip after moving through this distance?
(c) Find the speed of the strip at the end of the 0.50 m travel.