What will happen if there is a change in a magnetic field? a)the magnetic field will increase. b)the magnetic field will decrease. c)an electric field will be produced. d)the magnetic field will collapse.

C)An electric field will be produced.

Explanation:

When magnetic field changes with time then it will induce electric field in a closed loop.

This is also known as non conservative electric field which is given by the equation

for closed loop of radius "r" we have

so here the correct answer will be given as

C)An electric field will be produced.

it takes about 30 days for it to break down