Why does a compass point towards earths geographic north pole

It doesn't. It points to the Earth's MAGNETIC pole. There's only a very small part of the Earth's surface where the geographic pole is in exactly the same direction, and there are places where there's a huge difference. For example, I've worked in parts of Alaska where compasses point WEST !

The modern-day generator works on the principle of electromagnetic induction discovered by michael faraday in 1831-32. faraday discovered that the above flow of electric charges could be induced by moving an electrical conductor, such as a wire that contains electric charges, in a magnetic field.