Question #5392f
1 Answer
Dec 21, 2017
In a power station, the flow of water is used to drive turbines which in turn rotate a magnet surrrounded by stationary coils of wire
Explanation:
In a power station, the flow of water is used to drive turbines which in turn rotate a permanent magnet surrounded by stationary coils of wire (or rotate coils of wire surrounded by stationary permanent magnets).
This relative movement causes the magnetic field lines,or "flux", of the permanent magnet to be "cut" by the coil. This induces an alternating e.m.f. in the coil. The faster the rotation, the larger the e.m.f.
