Moving a metal plate through a magnetic field sets up currents in the plates. Th

Question

Moving a metal plate through a magnetic field sets up currents in the plates. The magnetic field that is induced will oppose the motion of the plate, hence slow it down. The effectiveness of the braking action depends on how easy it is for currents to flow. Better conductors allow for larger currents, and hence a larger induced magnetic field and a larger force between the magnet and the metal plate. The geometry of the path along which the current can flow also matters. If the current circulating in the plate is broken up effectively, for example by putting slots in the plate, the magnetic damping force will be much smaller than when the current is free to flow across the plate. Which of the pendula will have the greatest braking force ? (Solid, slotted, or partially slotted?)

Explanation / Answer

Here the main aim is to reduce the damping. If damping is less breaking force will be more

Slotted one will be have larger breaking force

Related Questions

Navigate

• Browse (All)
• Browse M
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.