Electrical

• What is the definition of electrical engineering?

  Electrical engineering is the discipline that studies the design and application of equipment, devices, and systems that use electricity, electronics, and electromagnetism.
• Why is the term 'bulb' considered incorrect in relation to lights?

  The correct term for lights is 'lamp'.
• What are some fields of electrical engineering?

  • Computer
  • Systems
  • Power
  • Telecommunications
  • Radio
  • Signal
  • Instrumentation
  • Electronic
  • Optics
• What does PAT stand for in electrical engineering?

  PAT stands for portable appliance testing.
• What is the difference between AC and DC?

  AC refers to alternating current, where the flow of electrons changes direction, while DC refers to direct current, where the flow is in one direction only.
• What type of current do power stations generate?

  Power stations generate AC current.
• Why is AC preferred over DC for transmission in power stations?

  AC is preferred because its transmission is easier and more efficient, allowing transformers to step up and step down voltage.
• What is a transformer in electrical engineering?

  A transformer is an electrical device that changes the voltage of an AC supply.
• What types of household appliances typically use DC?

  Household appliances that use DC include mobile phones, laptops, microwaves, batteries, and lamps.
• What types of household appliances typically use AC?

  Household appliances that use AC include fridges, televisions, and fans.
• How do AC and DC differ in their applications in household appliances?

  • DC is used in:
  • Mobile phones
  • Laptops
  • Microwaves
  • Batteries
  • Lamps
  • AC is used in:
  • Fridges
  • Televisions
  • Fans