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The electric field of an electromagnetic wave in
free space is represented as
E=EoCos(wt-kz)i.The corresponding magnetic induction vector will
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Frequently Asked Questions
How to prepare for IIT-JEE Physics?
To prepare for IIT-JEE Physics, focus on understanding concepts rather than memorizing formulas. Practice solving a variety of problems, especially previous years’ questions. Create a study schedule that covers all topics, with extra time for challenging areas like Mechanics and Electromagnetism. Regular revision and mock tests are essential for success.
How does electromagnetic induction work?
Electromagnetic induction is the process of generating an electromotive force (EMF) in a conductor by changing the magnetic field through it. According to Faradays Law, the induced EMF is proportional to the rate of change of magnetic flux. This principle is the basis for generators, transformers, and inductors, which are essential components in electrical power systems.
What is the Doppler effect?
The Doppler effect is the change in frequency or wavelength of a wave for an observer moving relative to the source of the wave. When the source moves toward the observer, the frequency increases (wavelength decreases). When the source moves away, the frequency decreases (wavelength increases). This effect explains why the pitch of a siren changes as it passes by.