Electric current is expressed by the amount of charge flowing through a particular area in unit time. It signifies the rate of flow of electric charges.

When the switch is turned off in a torch, the electric circuit is interrupted or broken. As a result, the flow of electric current is halted, and the bulb in the torch ceases to glow.

Cells or batteries provide the flow of charges. The switch establishes a conducting link between the cell and the bulb, controlling the current.

Electric current in a conductor is the flow of electric charge, typically electrons. Similar to air and water currents, it involves the movement of a substance—in this case, electric charge—creating a dynamic flow that serves various practical purposes in electrical ...

The chapter will delve into the heating effect of electric current and its practical applications.

The chapter will address the constituents of electricity, electric circuit flow, and factors regulating current.

The Joule heating in the fuse melts it, breaking the electric circuit and preventing the flow of unduly high electric current.

Overloading occurs when the live and neutral wires come into direct contact, causing a short circuit. The consequence is a sudden increase in current.

An electric fuse is crucial in domestic circuits as it prevents damage to appliances and the circuit caused by overloading or short circuits. It acts as a safety device by breaking the circuit when excessive current flows, safeguarding against potential ...

A simple rule can be used to find the direction of the force on the conductor when the current is at right angles to the magnetic field.