Electric field strenght of a loop given maximum flux

[fenixbtc]

Homework Statement

a 29 cm diameter circular loop is rotated in a uniform electric field until the position of maximum electric flux is found. the flux is measured to be 7.2e5 Nm^2/C
what is the electric field strength in units N/C?

Homework Equations

flux = EA

The Attempt at a Solution

7.2e5 Nm^2/C = E * (.29m/2)^2
E = 34244946.4923

apparently it's not the right answer though...

thanks!
David

 

[rl.bhat]

What is the area of the circle?

 

[fenixbtc]

the area of a circle is pi*r^2...but this is a loop...or are they the same thing?

 

[rl.bhat]

the area of a circle is pi*r^2...but this is a loop...or are they the same thing?

Circular loop and circle is the same.

 

[fenixbtc]

awesome! thank you.