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What is the role of a transformer in an AC circuit? (2023)

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Question: What is the role of a transformer in an AC circuit? (2023)

Options:

  1. To convert AC to DC
  2. To increase or decrease voltage
  3. To store energy
  4. To measure current

Correct Answer: To increase or decrease voltage

Exam Year: 2023

Solution: 

A transformer is used to increase or decrease voltage in an AC circuit.

What is the role of a transformer in an AC circuit? (2023)

Practice Questions

Q1
What is the role of a transformer in an AC circuit? (2023)
  1. To convert AC to DC
  2. To increase or decrease voltage
  3. To store energy
  4. To measure current

Questions & Step-by-Step Solutions

What is the role of a transformer in an AC circuit? (2023)
  • Step 1: Understand that a transformer is a device used in electrical circuits.
  • Step 2: Know that it works with alternating current (AC) only.
  • Step 3: Learn that the main function of a transformer is to change voltage levels.
  • Step 4: Recognize that it can either increase (step-up transformer) or decrease (step-down transformer) the voltage.
  • Step 5: Remember that this change in voltage helps in efficiently transmitting electricity over long distances.
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