In an AC circuit, if the frequency is increased, what happens to the inductive r

Practice Questions

Q1
In an AC circuit, if the frequency is increased, what happens to the inductive reactance? (2020)
  1. It increases
  2. It decreases
  3. It remains constant
  4. It becomes zero

Questions & Step-by-Step Solutions

In an AC circuit, if the frequency is increased, what happens to the inductive reactance? (2020)
  • Step 1: Understand what inductive reactance is. It is the opposition that an inductor offers to the flow of alternating current (AC).
  • Step 2: Know the formula for inductive reactance, which is XL = 2πfL, where XL is inductive reactance, f is frequency, and L is inductance.
  • Step 3: Identify the relationship between frequency and inductive reactance in the formula. Notice that XL depends on frequency (f).
  • Step 4: Realize that if the frequency (f) increases, the value of XL will also increase because they are directly related.
  • Step 5: Conclude that in an AC circuit, increasing the frequency leads to an increase in inductive reactance.
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