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What is the purpose of a transformer in a power distribution system?

Practice Questions

Q1
What is the purpose of a transformer in a power distribution system?
  1. To convert power to mechanical energy
  2. To reduce transmission losses
  3. To increase the frequency of the supply
  4. To provide backup power

Questions & Step-by-Step Solutions

What is the purpose of a transformer in a power distribution system?
  • Step 1: Understand that electricity is generated at power plants.
  • Step 2: Know that electricity needs to travel long distances to reach homes and businesses.
  • Step 3: Realize that when electricity travels long distances at low voltage, it loses energy as heat.
  • Step 4: Learn that a transformer can increase (step up) the voltage of electricity for long-distance travel.
  • Step 5: Understand that higher voltage means less energy is lost during transmission.
  • Step 6: Know that when the electricity reaches its destination, another transformer steps down the voltage to a safe level for use.
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