Answer: diode is a semiconductor device that allows current to flow in one direction only. It acts as a one-way valve, permitting the passage of electric current when the voltage across it is in the forward direction. Diodes are crucial in rectification, signal demodulation, and electronic protection.
Q:Describe a capacitor and its uses.
Answer: capacitor is a passive electrical component with two terminals that store energy in an electric field. It is used in various applications like filtering, power conditioning, signal processing, and energy storage. Capacitors are essential in creating resonant circuits in radios and tuning devices..
Q:What is a three-phase electrical system?
Answer: three-phase electrical system is a polyphase system used primarily for power transmission and generation. It consists of three alternating currents of the same frequency and voltage amplitude, with a phase difference of one-third of a cycle (120 degrees). This system is more efficient and economical for large power distribution.
Q:Explain the concept of the power factor.
Answer:The power factor measures how effectively electrical power is converted into useful work output. It is defined as the ratio of the real power (used to do work) to the apparent power (total power within the circuit). A higher power factor signifies efficient power usage.
