Q1: Heat flux, as defined in heat flow is analogous to __________ in electricity flow.

ANS:A - current

In the context of electricity, current refers to the flow of electric charge through a conductor. It is a fundamental concept in electrical engineering and is measured in units of amperes (A). When a voltage difference (or potential difference) is applied across a conductor, it creates an electric field within the conductor. This electric field exerts a force on free electrons present in the conductor, causing them to move in a particular direction. The movement of these electrons constitutes an electric current. The direction of current flow is conventionally defined as the direction in which positive charges would move, opposite to the actual movement of electrons. This convention originates from historical conventions established before the discovery of the electron, when it was believed that positive charges (or "holes" in semiconductor materials) were responsible for current flow. In summary, current represents the flow of electric charge in a circuit, induced by a voltage difference and characterized by the movement of electrons within a conductor. It is a fundamental parameter in electrical circuits and plays a crucial role in the operation of various electrical devices and systems.