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In a transformer, if the primary coil has 100 turns and the secondary coil has 5

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Question: In a transformer, if the primary coil has 100 turns and the secondary coil has 50 turns, what is the relationship between the primary and secondary voltages?

Options:

  1. V1/V2 = 2
  2. V1/V2 = 0.5
  3. V1/V2 = 1
  4. V1/V2 = 4

Correct Answer: V1/V2 = 2

Solution: 

The voltage ratio in a transformer is equal to the turns ratio: V1/V2 = N1/N2. Here, V1/V2 = 100/50 = 2.

In a transformer, if the primary coil has 100 turns and the secondary coil has 5

Practice Questions

Q1
In a transformer, if the primary coil has 100 turns and the secondary coil has 50 turns, what is the relationship between the primary and secondary voltages?
  1. V1/V2 = 2
  2. V1/V2 = 0.5
  3. V1/V2 = 1
  4. V1/V2 = 4

Questions & Step-by-Step Solutions

In a transformer, if the primary coil has 100 turns and the secondary coil has 50 turns, what is the relationship between the primary and secondary voltages?
  • Step 1: Identify the number of turns in the primary coil (N1) and the secondary coil (N2). Here, N1 = 100 turns and N2 = 50 turns.
  • Step 2: Write down the formula for the voltage ratio in a transformer, which is V1/V2 = N1/N2.
  • Step 3: Substitute the values of N1 and N2 into the formula: V1/V2 = 100/50.
  • Step 4: Simplify the fraction 100/50 to find the ratio: 100/50 = 2.
  • Step 5: Conclude that the relationship between the primary voltage (V1) and the secondary voltage (V2) is V1 = 2 * V2.
  • Transformer Voltage Ratio – The relationship between the primary and secondary voltages in a transformer is determined by the ratio of the number of turns in the primary coil to the number of turns in the secondary coil.
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