Junior Engineer SMT Interview Questions and Answers

Passive components do not require an external power source to operate, while active components require a power source.

• Passive components include resistors, capacitors, inductors, and transformers.

• Active components include transistors, diodes, integrated circuits, and operational amplifiers.

• Passive components do not amplify or control electrical signals, while active components can amplify, switch, or control electrical signals.

• Passive components are typically used to create s...read more

Electronics refers to the branch of physics and technology that deals with the flow of electrons and their behavior in devices and systems.

• Electronics involves the study and application of electrical circuits, components, and systems.

• It focuses on the behavior of electrons in semiconductors, conductors, and insulators.

• Examples of electronic devices include smartphones, computers, televisions, and radios.

An ideal current source is a device that provides a constant current output regardless of changes in load resistance or voltage.

• An ideal current source has zero output impedance, meaning it can deliver the specified current to any load resistance without voltage drop.

• It maintains a constant current output even if the load resistance changes.

• Examples of ideal current sources include transistors operating in the active region and specialized current source circuits.

• An ideal cur...read more