MHT CET · Physics · Electromagnetic Induction
In an a. c. generator, when the plane of the coil is perpendicular to the magnetic field
- A magnetic flux is zero and induced e.m.f. is maximum.
- B magnetic flux is maximum and induced e.m.f. is zero.
- C both magnetic flux and induced e.m.f. are maximum.
- D both magnetic flux and induced e.m.f. are zero.
Answer & Solution
Correct Answer
(B) magnetic flux is maximum and induced e.m.f. is zero.
Step-by-step Solution
Detailed explanation
Magnetic flux, \(\phi_B=B A \cos \theta\)
where \(\theta\) is the angle between normal to the plane of the coil and magnetic field.
Induced emf, \(\varepsilon=B A \sin \theta\)
Here, \(\theta=0^{\circ}\)
\(\therefore\) Magnetic flux is maximum and induced emf is zero.
where \(\theta\) is the angle between normal to the plane of the coil and magnetic field.
Induced emf, \(\varepsilon=B A \sin \theta\)
Here, \(\theta=0^{\circ}\)
\(\therefore\) Magnetic flux is maximum and induced emf is zero.
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