Answer :
The turbine in a hydroelectric dam is turned by water to produce a direct current
Answer:
Option C, It is turned by water to turn a wire inside a magnet.
Explanation:
In a hydroelectric power plant, the water is stored and then releases from greater heights which produce force enough to turn the turbine. These turbine then activates a generator to produce electricity. With in the generator a wire is set between two magnets , which start rotating to produce AC current.
Electricity produced by rotating wire fixed between the magnets is always an AC current. Therefore option B is incorrect.
Option A and D is incorrect as in producing hydroelectric energy it is the water which is used to rotate the turbine and not the wind. Also only AC current is produced by the hydroelectric dam.
