Describe the role of a generator in producing electricity.

the generator transforms the mechanical energy of the turbine into electrical energy.

the generator spins the turbine to create mechanical energy.

the generator stores electrical energy for later use in homes and businesses.

the generator reverses the turbine to create electrical energy.

Option (A)

Explanation:

In the process of producing electric energy, always a turbine rotates.

The rotation of turbine is due to the falling water in case of hydroelectric power station, due to the heat energy in thermal power station.

As the turbine rotates, the energy of one form is converted into mechanical energy of turbine. Now the generator converts the mechanical energy into electrical energy. It is done by the electromagnetic induction.

When a magnetic flux linked with a coil changes, the induced emf is developed in the coil, this phenomenon is called electromagnetic induction.

we have been given a quadratic function and we need to restrict the domain such that it becomes a one to one function.

we know that vertex of this quadratic function occurs at (5,2).

further, we know that range of this function is .

if we restrict the domain of this function to either or , it will become one to one function.

let us know find its inverse.

upon interchanging x and y, we get:

let us now solve this function for y.

hence, the inverse function would be if we restrict the domain of original function to and the inverse function would be if we restrict the domain to .