Question

The magnetic field around a current carrying circular loop can be increased by ?
a)increasing the radius of the coil
b)converting the coil into straight wire
c)decreasing yhe radius of the coil
d)reducing the amount of electric current through the coil ​

Answer 1

Answer:

Magnetic field around a current caring loop does not depends on radius.

The loop can be converted into a straight line and reduce the radius of it.

so the option is d

Explanation:

Answer 2

Answer:

option "C" is correct answer

because by reducing the current in coil the mf around the coil will b reduced so,

hence "D"is wrong