In a series RLC circuit, if the resistance is increased, what happens to the bandwidth?
Practice Questions
1 question
Q1
In a series RLC circuit, if the resistance is increased, what happens to the bandwidth?
Increases
Decreases
Remains the same
Becomes zero
In a series RLC circuit, increasing the resistance decreases the bandwidth because the quality factor (Q) is inversely proportional to resistance.
Questions & Step-by-step Solutions
1 item
Q
Q: In a series RLC circuit, if the resistance is increased, what happens to the bandwidth?
Solution: In a series RLC circuit, increasing the resistance decreases the bandwidth because the quality factor (Q) is inversely proportional to resistance.
Steps: 5
Step 1: Understand what a series RLC circuit is. It consists of a resistor (R), inductor (L), and capacitor (C) connected in series.
Step 2: Know what bandwidth means. Bandwidth is the range of frequencies over which the circuit can operate effectively.
Step 3: Learn about the quality factor (Q). Q is a measure of how underdamped an oscillator or resonator is, and it is related to the sharpness of the resonance peak.
Step 4: Recognize that the quality factor (Q) is inversely proportional to resistance (R). This means that as resistance increases, Q decreases.
Step 5: Understand that a lower Q value means a wider bandwidth. Therefore, if resistance increases, the bandwidth decreases.
