# A charged particle of charge q is rotating in an electric field E What is the work done by the field when the charge comletes a rotation?

zero

### How do you increase the angular velocity of a rotating object?

Angular velocity just means how fast it's rotating. If youaa want more angular velocity, just rotate it faster or decrease the radius (move it closer to the center of rotation). Just like force = rate of change of momentum, you have torque= rate of change of angular moment Or We can increase the angular velocity of a rotating particle by applying a tangential force(i.e. accelaration) on the particle. Since the velocity of the particle is…

### What is the difference between electromagnets and electric generators?

Really oversimplifying it: an electromagnet converts electric current to a magnetic field and an electric generator converts mechanical rotation to an electric voltage. An electromagnet has no moving parts while an electric generator is composed of a stationary part called the "stator" and a rotating part called the "rotor". An electric generator may contain either permanent magnets or electromagnets, depending on the type of generator.