Question

a) Two flat surfaces are exposed to a uniform, horizontal magnetic field of magnitude 0.22 T. When viewed edge-on, the first surface is tilted at an angle of 21° from the horizontal, and a net magnetic flux of 6.6 x 10^-4 Wb passes through it. The same net magnetic flux passes through the second surface. (a) Determine the area of the first surface. (b) Find the smallest possible value of the area of the second surface.

b) Near San Francisco, where the vertically downward component of the earth's magnetic field is 6.2 x 10^-5 T, a car is traveling forward at 28 m/s. The width of the car is 1.9 m. Find the emf induced between the two sides of the car. If positive charge accumulates on the driver's side, the enter the emf as a positive number. If negative charge accumulates on the driver's side, the enter the emf as a negative number.

Thanks!

Answer 1