What is the effect of increasing the frequency of an AC source on the inductive reactance? (2023)
Practice Questions
1 question
Q1
What is the effect of increasing the frequency of an AC source on the inductive reactance? (2023)
Increases
Decreases
Remains constant
Becomes zero
Increasing the frequency of an AC source increases the inductive reactance.
Questions & Step-by-step Solutions
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Q
Q: What is the effect of increasing the frequency of an AC source on the inductive reactance? (2023)
Solution: Increasing the frequency of an AC source increases the inductive reactance.
Steps: 6
Step 1: Understand what AC source means. AC stands for Alternating Current, which means the current changes direction periodically.
Step 2: Learn about frequency. Frequency is how many times the current changes direction in one second, measured in Hertz (Hz).
Step 3: Know what inductive reactance is. Inductive reactance is the opposition that an inductor (a coil of wire) offers to the flow of AC current.
Step 4: Recognize the formula for inductive reactance. The formula is XL = 2πfL, where XL is the inductive reactance, f is the frequency, and L is the inductance (a property of the inductor).
Step 5: Analyze the formula. Notice that inductive reactance (XL) is directly proportional to frequency (f). This means if frequency increases, XL also increases.
Step 6: Conclude that increasing the frequency of the AC source will increase the inductive reactance.
