The induced emf of a generator when the flux of poles is doubled and speed is doubled

When the speed is doubled, KE also gets doubled.

Two poles seprated by 10 cm experiences a force on mN.Find the force between them when the distance is doubled and the pole strengths are doubled.

When the speed of a moving body is doubled

When the speed of a moving object is doubled, its

To induce an e.m.f. in a coil, the magnetic flux