What is the effect of increasing the frequency of the AC supply on the inductive

Practice Questions

Q1
What is the effect of increasing the frequency of the AC supply on the inductive reactance? (2020)
  1. Increases
  2. Decreases
  3. Remains constant
  4. Becomes zero

Questions & Step-by-Step Solutions

What is the effect of increasing the frequency of the AC supply on the inductive reactance? (2020)
  • Step 1: Understand what inductive reactance (X_L) is. It is the opposition that an inductor offers to the flow of alternating current (AC).
  • Step 2: Know the formula for inductive reactance: X_L = 2πfL, where 'f' is the frequency of the AC supply and 'L' is the inductance.
  • Step 3: Identify that in the formula, 'f' (frequency) is directly proportional to X_L (inductive reactance).
  • Step 4: Realize that if you increase the frequency (f), the value of X_L will also increase because they are related by multiplication.
  • Step 5: Conclude that increasing the frequency of the AC supply results in an increase in inductive reactance.
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