A loop of area 0.23 m2 is in a 0.047 T uniform magnetic field oriented so that the maximum flux goes through the coil. The coil is then rotated so that the flux through it goes to zero in 0.34 s. The average emf induced in the coil during the 0.34 s is

A generator has a N = 220-turn coil with a radius of 5.03 cm. It rotates with a frequency of f = 27 times per second in a B = 1.33 T magnetic field. What is the maximum emf induced in the coil?

Near San Francisco, where the vertically downward component of the earth's magnetic field is 6.4 x 10-5 T, a car is traveling forward at 24 m/s. The width of the car is 2.4 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.

Near San Francisco, where the vertically downward component of the earth's magnetic field is 5.7 x 10-5 T, a car is traveling forward at 30 m/s. The width of the car is 2.3 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. Number i Units

In the figure below, a semicircular conductor of radius R = 0.220 m is rotated about the axis AC at a constant rate of 170 rev/min. A uniform magnetic field of magnitude 1.32 T fills the entire region below the axis and is directed out of the page. R Воли (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. The value in part (a) would remain the same. The value in part (a) would decrease. The value in part (b) would increase. The value in part (b) would remain the same. The value in part (b) would decrease. (d) Sketch the emf versus time when the field is as drawn in the figure. Choose File no file selected (e) Sketch the emf versus time when the field is extended as…

A circular wire coil with 12 turns and radius 3.92 cm is placed in a uniform magnetic field of strength 6.07 T, directed perpendicular to the plane of the wire loops. Over a period of 2.36 s, the magnetic field fades away to zero. What is the average induced emf (voltage) in the coil over this period of time?