The no. Of turns per unit length of long solenoid is 10 its average radius is 5 cm and it carries current of 10A then ratio of flux densities obtained at centre and at end on axis will be?
The no. Of turns per unit length of long solenoid is 10 its average radius is 5 cm and it carries current of 10A then ratio of flux densities obtained at centre and at end on axis will be?











