How is electric current generated?

What is the exact weight of a genuine 1851 Baldwin 20 dollar gold piece? What is the difference between fifty yards and fifty meters? How much does skai Jackson weight? Do precision and accuracy mean the same thing in science? What are the two forces that act on a stationary boat that is afloat? Is it possible to differentiate acceleration with respect to time if so what is the derivation? Explain What soundproofing material does to sound? How many premixed cement bags are needed to pour 1 cubic foot of concrete? What does the smallest division on the main scale of the micrometer gauge correspond to? What is the wavelength range of the visible spectrum for electromagnetic radiation? How can you prevent your self from unwanted sound or noise? How can you calculate the resulant velcity of two velocities in the same direction? What happen when light is scattered? What instruments use a string or wire to produce sound? How gravity does effects objects? Four uses of nuclear radiation? What is an electrical conductor? What is the numerical value in meters per second squared of the acceleration of an object experiencing true free fall? Why did Gustav Ludwig Hertz win The Nobel Prize in Physics in 1925? How does your nose warm incoming air?

How is electric current generated?