What condition is necessary for the flow of heat? what analogous condition is necesary for the flow of charge?
Flow of heat? What about a difference of temperatures? Charges? What about a difference in voltage potential?
flow of electrons or flow of charge is caused by the repel forces between electrons. In a conductor. electrons are jammed inside, and are force to move alone because they are constantly repelling each other.
The flow of heat is dependent on the presence of a temperature difference. Heat naturally moves from an area of higher temperature to an area of lower temperature, which is known as thermal conduction. This transfer occurs due to the random motion of molecules, where hotter molecules transfer energy to cooler molecules through collisions.
Similarly, the flow of charge, or electric current, requires a potential difference. This is analogous to a temperature difference in the flow of heat. Electric current arises when there is a difference in electric potential (voltage) between two points in an electric circuit. This potential difference is created by establishing an electric field, which then prompts the movement of charged particles, such as electrons, in a specific direction.
To summarize, for the flow of heat, a temperature difference is necessary, while for the flow of charge, a potential difference (voltage) is necessary.