conducting coils or spins conducting coils inside static magnetic fields to create a changing

magnetic flux that produces currents in the coils.

a$.$ If a dam generator includes a copper coil with a radius of $1$ m$,$ spinning in a uniform field

of $0\mathrm{.}1$ T$,$ how many turns, spinning at $60$ Hz$,$ must the coil have to generate a peak emf

of $160$ V$?$

b$.$ If the total wire resistance is $20,$ how much current is produced?