A closed current carrying circular loop is placed on one face of a cubical box as shown in fig. The magnetic flux through area of the box contained by the loop is `phi_1` and the magnetic flux through remaining surface area of the box is `phi_2` . Which of the following option is correct

Options

A. `phi_1-phi_2`
B. `phi_1gt phi_2`
C. `phi_1=-phi_2`
D. `phi_1ltphi_2`

Answer

C

Explanation

Magnetic flux through a closed surface is always zero,
So, `phi_(1)+phi_(2)=0`
`implies phi_(1)=-phi_(2)`.