Question 408: AC fundamentals

Question

If we increase the frequency of an a.c. supply, then inductive reactance

Accepted Answer

The inductive reactance ($ X_L $) of an inductor in an AC circuit is given by the formula:
$$ X_L = 2 \pi f L $$
where $ f $ is the frequency of the AC supply and $ L $ is the inductance.
From this formula, we see that the inductive reactance ($ X_L $) is directly proportional to the frequency ($ f $). This means that as the frequency increases, the inductive reactance increases as well. Therefore, the correct option is:
Option B: increases as it directly proportional to frequency

Answer

increases directly with the square of frequency

Answer

increases as it directly proportional to frequency

Answer

decreases inversely with the square of frequency

Answer

decreases as it is inversely proportional to the frequency

AC fundamentals

If we increase the frequency of an a.c. supply, then inductive reactance

Choose the correct answer: