VF Corporation Interview Questions and Answers

Power is the rate at which work is done or energy is transferred. AC current changes direction periodically, while DC current flows in one direction.

• Power is the rate at which work is done or energy is transferred

• AC current changes direction periodically

• DC current flows in one direction

Resistance is the opposition to the flow of electric current in a circuit.

• Resistance is measured in ohms (Ω).

• It is caused by the collisions of electrons with atoms in a material.

• Higher resistance leads to lower current flow in a circuit.

• Resistance can be controlled by using resistors in a circuit.

• Examples of materials with high resistance include rubber and glass.

• Examples of materials with low resistance include copper and silver.

A capacitor is an electronic component that stores and releases electrical energy.

• Capacitors consist of two conductive plates separated by an insulating material, known as a dielectric.

• When a voltage is applied across the plates, the capacitor stores energy in the electric field between the plates.

• Capacitors are commonly used in electronic circuits to filter out noise, smooth voltage fluctuations, and store energy.

• Examples of capacitors include ceramic capacitors, electrolyti...read more

Color coding is a method of organizing and identifying items based on specific colors assigned to different categories or characteristics.

• Used in various industries such as electronics, wiring, and organization systems

• Helps to quickly identify and differentiate between items or components

• Commonly used in electrical wiring to indicate the function or purpose of wires (e.g. red for power, black for ground)

• Can also be used in organization systems to categorize items based on col...read more

A diode is a semiconductor device that allows current to flow in one direction only.

• Diodes have two terminals - an anode and a cathode

• They are commonly used in rectifier circuits to convert AC to DC

• Examples of diodes include the common silicon diode and light-emitting diodes (LEDs)