Problem 21.01 MasteringPhysics 1 of 4 Problem 21.01 A circular area with a radiu

Question

Problem 21.01 MasteringPhysics 1 of 4 Problem 21.01 A circular area with a radius of 7.10 cm lies in the x-y plane. Part A What is the magnitude of the magnetic flux through this circle due to a uniform magnetic field B = 0.223 T that points in the +z direction? B = Wb SubmitGive Up Part B What is the magnitude of the magnetic flux through this circle due to a uniform magnetic field B = 0.223 T that points at an angle of 52.1 from the +z direction? B = Wb SubmitGive Up Part C What is the magnitude of the magnetic flux through this circle due to a uniform magnetic field B = 0.223 T that points in the +y direction? B = Wb

Explanation / Answer

A) area A = (pi x 0.0355^2) ( k)

B = 0.233 (k) T

flux = B.A = 0.233 x pi x 0.0355^2 = 9.22 x 10^-4 Tm^2

B) flux = |B| |A| cos@

    = (0.233) ( pi x 0.0355^2) cos52.1

   = 5.67 x 10^-4 T m^2

C) now @ = 90 deg

and cos90 = 0

flux = 0

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