Faraday's second law of EMI says that the magnitude of e.m.f. induced in a cuicuit is directly proportional to the rate of change of magnetic flux linked with circuit, i.e., `e prop (d phi)/(dt)`. It means if the magnetic flux linked with a circuit changes at a faster rate, the induced e.m.f. is larger and vice-versa.
Read the above passage and answer the following question :
(i) Coil A is held in a very strong magnetic field and coil B is held in a weak magnetic field. In which coil do you expect larger induced e.m.f. ?
(ii) A coil is moved in a uniform magnetic field. When do you expect induced e.m.f. in the coil ?
(iii) What values of life do you learn from Faraday's second law of EMI ?