Concept explainers
To Explain:force is required to pull out aluminium sheet held between poles of large bar magnet.
Explanation of Solution
Introduction:
Whenever there is magnetic flux linked with a coil varies, an emf is induced which in turn generates current.
A force is required to pull out aluminium sheet from the magnetic field because area of the linked with sheet changes in turn changing the magnetic flux.
This varying flux will induce currents in “free”
Conclusion: Therefore, some amount of force is required to take away the sheet from between the poles.
Chapter 21 Solutions
Physics: Principles with Applications
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