question_answer

A plane spiral coil is made of a thin insulated wire and has\[N=100\]turns. Radii of inside and outside turns are \[a=10\text{ }cm\]and \[b=20\text{ }cm\]respectively. A magnetic field normal to the plane of spiral exists in the space. The magnetic field increases at a constant rate \[\alpha =0\cdot 3\]tesla/second. Calculate induced emf between the ends of the spiral. (in volt)

Answer:

2.20