In the figure below, a semicircular conductor of radius R = 0.280 m is rotated about the axis AC at a constant rate of 160 rev/min. A uniform magnetic field of magnitude 1.20 T fills the entire region below the axis and is directed out of the page. R (a) Calculate the maximum value of the emf induced between the ends of the conductor. (b) What is the value of the average induced emf for each complete rotation? (c) How would your answers to parts (a) and (b) change if the magnetic field were allowed to extend a distance R above the axis of rotation? (Select all that apply.) O The value in part (a) would increase. O The value in part (a) would remain the same. O The value in part (a) would decrease. O The value in part (b) would increase. O The value in part (b) would remain the same. O The value in part (b) would decrease.

In the figure below, a semicircular conductor of radius R = 0.280 m is rotated about the axis AC at a constant rate of 160 rev/min. A uniform magnetic field of magnitude 1.20 T fills the entire region below the axis and is directed out of the page. R (a) Calculate the maximum value of the emf induced between the ends of the conductor. (b) What is the value of the average induced emf for each complete rotation? (c) How would your answers to parts (a) and (b) change if the magnetic field were allowed to extend a distance R above the axis of rotation? (Select all that apply.) O The value in part (a) would increase. O The value in part (a) would remain the same. O The value in part (a) would decrease. O The value in part (b) would increase. O The value in part (b) would remain the same. O The value in part (b) would decrease.