AP EAMCET · PHYSICS · Electromagnetic Induction
What is the phase difference between the flux linked with a coil rotating in a magnetic field and the induced emf produced in it?
- A 0
- B \(\frac{\pi}{4}\)
- C \(\frac{\pi}{2}\)
- D \(\pi\)
Answer & Solution
Correct Answer
(C) \(\frac{\pi}{2}\)
Step-by-step Solution
Detailed explanation
Magnetic flux linked with coil rotating in magnetic field \(B\) is given as \(\phi=B A \cos \omega t\) \(\therefore\) Induced emf, \(e=\frac{-d \phi}{d t}=-\frac{d}{d t} B A \cos \omega t\) \(=+B A \omega \sin \omega t\)…
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