What is the effect of increasing the frequency of an AC source on the inductive
Practice Questions
Q1
What is the effect of increasing the frequency of an AC source on the inductive reactance of a circuit?
It decreases
It remains the same
It increases
It becomes zero
Questions & Step-by-Step Solutions
What is the effect of increasing the frequency of an AC source on the inductive reactance of a circuit?
Step 1: Understand what inductive reactance (XL) is. It is a measure of how much a coil (inductor) resists the flow of alternating current (AC).
Step 2: Know the formula for inductive reactance: XL = 2πfL. Here, 'XL' is the inductive reactance, 'f' is the frequency of the AC source, and 'L' is the inductance of the coil.
Step 3: Identify the relationship between frequency and inductive reactance. In the formula, XL is directly proportional to frequency (f).
Step 4: Realize that if you increase the frequency (f) of the AC source, the value of XL will also increase because they are connected by multiplication.
Step 5: Conclude that increasing the frequency of the AC source leads to an increase in the inductive reactance of the circuit.
