A regular hexagon shaped wire loop with a side length of a 3

A regular hexagon shaped wire loop with a side length of a 32.3 cm carries an electric current of I 19.3 A as shown in the figure Determine the size of the magnetic field at point P, the center of the hexagon. 4.14x10 T Your are correct. 159-7144 Previous Tries receipt no. is Determine the size of the magnetic field at point Q, one of the vertices of the hexagon. -1.03 10A-5 T Submit Answer Incorrect. Tries 4/12 Previous Tries

Solution

formula:

   At point P: B = -[nu₀I/2*pi*r]*sin[pi/n]

   for n = 6, B = -[6*u₀I/2*pi*r]*sin[pi/6]

   At point Q:

B = -[nu₀I/2*pi*r]*sin[pi/n]

n = 5,

            B = -[5u₀I/2*pi*r]*sin[pi/5]

               = -5* {(1/6) [4.14x10^-5 T]}

               = -5*[6.9e-6]

               = -3.45X10^-5 T

Magnitude: 3.45X10^-5 T