A closely wound rectangular coil of 80 turns has dimensions of 25.0 cm by 40.0 cm. The plane of the coil is rotated from a position where it makes an angle of 37.0° with a magnetic field of 1.30 T to a position perpendicular to the field. The rotation takes 0.0800 s. What is the average emf EMF induced in the coil?
What is the magnitude of the average emf E induced as the coil is rotated?

Induced emf will be equal to 51.76 volt  

Explanation:

We have given number of turns N = 80

Dimension of rectangular coil is 25 cm by 40 cm

So area of rectangular coil

Change in magnetic

Change in time is given dt = 0.08 sec

Induced emf is given by

So induced emf will be equal to 51.76 volt

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge

force tends to be low and long diustance masses are high