1.

what will be magnetic field produced the centre of current carrying if will be conducted value of current flowing a ) ratio of the coil b) number of the coil please answer

Answer»

Given,

Initial current= X

Final current =2x

Initial radius = r

Final radius =1/2 r

Formula,

Initial Magnetic FIELD = B1=permeability of free space x current/2 PI x radius

Let , B1= k × I/ r

Final magnetic field =B2=k×2 ×I/2×r

B2=k×I/r

B2=B1

Hence there is no CHANGE in magnetic field



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