A Metal Disk Rotates About Its Central Axis at an Angular

Multiple Choice

A metal disk rotates about its central axis at an angular frequency of 800 radians per second in a uniform magnetic field of 0.8 T.The diameter of the disk is 8 cm.What is the magnitude of the voltage difference between the center and edge of the disk?

A) 0 V
B) 0.80 V
C) 0.51 V
D) 1.0 V
E) 3.1 V