How are the number of electrons released per unit time by the cathode related to the current?

The relationship between the number of electrons released per unit time by the cathode and the current is directly proportional. When current is defined, it refers to the flow of electric charge, which is carried by electrons in a conductive medium. Therefore, as the current increases, the number of electrons that are emitted and flow from the cathode also increases correspondingly.

This means that if you were to measure the current, you could ascertain the rate at which electrons are being released. If the cathode emits more electrons, the current flowing through the circuit increases, illustrating this direct proportionality. Consequently, if you double the number of electrons released, the current will also double, demonstrating their linked relationship.

Understanding this concept is crucial in radiation safety and various applications of electronics, particularly when dealing with cathode rays or other phenomena related to electron flow.