Question

state ohm's law with circuit diagrams. Explain what causes an opposition in conductor for the flow of current. Would a given wire always follow ohm's law if temperature is raised to a certain value​

Answer 1

Answer:

What drives current? We can think of various devices—such as batteries, generators, wall outlets, and so on—which are necessary to maintain a current. All such devices create a potential difference and are loosely referred to as voltage sources. When a voltage source is connected to a conductor, it applies a potential difference V that creates an electric field. The electric field in turn exerts force on charges, causing current.