The coil of an ac generator has 50 loops and a cross-sectional area of LaTeX: 0.2~m^20.2 m 2 . What is the maximum emf that can be generated, if the generator is spinning with an angular speed of LaTeX: 5.0~rad/s5.0 r a d / s in a LaTeX: 2.0~T2.0 Tmagnetic field

Maximum emf in the coil is 100 volt    

Explanation:

We have given number of loops in the coil N = 50

Cross sectional area

Angular speed is given

Magnetic field is given

We have to find the maximum emf in the coil

Maximum emf in the coil is given by

So maximum emf induced in the coil is 100 volt

power out to power in less than 100%

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.