PHYSICS 12 WCLN.ca 3. Jacob is pedaling his bike down the street perpendicular to the earth's magnetic field of 5.5 x 10-5 T. What is the flux through the metal rim of his bicycle wheel, if the wheel has an area of 1.13 m? 4. A rectangular coil of wire has sides of lengths 25 cm and 45 cm. The plane of the coil is perpendicular to the direction of the magnetic field. The flux of the coil is 0.0155 Wb. What is the strength of the magnetic field that this coil is placed within? 5. Considering the magnetic field lines and coil positions shown below, rank the coils (A, B, and C) by the magnitude of flux within them. Order from largest flux to smallest with an explanation for your conclusions. N B 6. The plane of a coil of wire should be placed (perpendicular or parallel) to the magnetic field to produce a maximum magnetic flux. Explain why this is true, using the hula-hoop in rain analogy.