COMEDK · Physics · 22. Electromagnetic Induction
In an AC generator, a rectangular coil having 400 turns, each having an area of \(210 \mathrm{~cm}^2\) is rotated in a uniform magnetic field of magnitude 4 T . If the coil makes 480 revolutions in a minute, the maximum value of emf produced by the generator is:
- A 1096 V
- B 1967 V
- C 6918 V
- D 1689 V
Answer & Solution
Correct Answer
(D) 1689 V
Step-by-step Solution
Detailed explanation
The maximum induced emf in an AC generator is given by the formula \(\varepsilon_{max} = N A B \omega\), where \(N\) is the number of turns, \(A\) is the area of the coil, \(B\) is the magnetic field strength, and \(\omega\) is the angular velocity of the coil. Given values:…
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