A DC generator gives an output of 200 V when the magnetic fux is 10 mWb and the rotational speed is 20 rev/s. What will the output be when (a) the speed is decreased, at the same magnetic fux, to 10...

A DC generator gives an output of 200 V when the magnetic fux is 10 mWb and the rotational speed is 20 rev/s. What will the output be when (a) the speed is decreased, at the same magnetic fux, to 10 rev/s, (b) the fux is increased to 20 mWb with the rotational speed remaining unchanged at 20 rev/s?