contestada

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.

Respuesta :

xiaylee
an electric field will be produced (in probably wrong)

Answer:

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

[tex]\int E.dl = -A.\frac{dB}{dt}[/tex]

for closed loop of radius "r" we have

[tex]E.(2\pi r) = -A\frac{dB}{dt}[/tex]

[tex]E = - \frac{A}{2\pi r}\frac{dB}{dt}[/tex]

so here the correct answer will be given as

C)An electric field will be produced.