## In This post you will get answer of Q.

A magnetic field in a certain region is given by $B=(40hat{i}-15hat{k})times 10^{-4} T$. The magnetic flux passes through a loop of area $5.0 ,cm^2$ is placed flat on xy plane is

Solution:

## $phi = overrightarrow{B}.overrightarrow{A}$

= $[ ( 40 hat{i} – 15 hat{k} 10^{-4} ] [ 5 times 10^{-4} hat{k} ] $ = – 750 $nWb$