What happens to the total current in a parallel RLC circuit at resonance? (2022)
Practice Questions
1 question
Q1
What happens to the total current in a parallel RLC circuit at resonance? (2022)
It is maximum
It is minimum
It is zero
It is constant
At resonance in a parallel RLC circuit, the total current is maximum because the impedance is at its minimum.
Questions & Step-by-step Solutions
1 item
Q
Q: What happens to the total current in a parallel RLC circuit at resonance? (2022)
Solution: At resonance in a parallel RLC circuit, the total current is maximum because the impedance is at its minimum.
Steps: 5
Step 1: Understand what a parallel RLC circuit is. It consists of a resistor (R), inductor (L), and capacitor (C) connected in parallel.
Step 2: Know what resonance means. Resonance occurs when the inductive reactance (XL) and capacitive reactance (XC) are equal.
Step 3: At resonance, the total impedance (Z) of the circuit is at its minimum value because the effects of the inductor and capacitor cancel each other out.
Step 4: Remember that current (I) in a circuit is inversely related to impedance (Z). When impedance is low, current is high.
Step 5: Therefore, at resonance, since the impedance is at its minimum, the total current flowing through the circuit is at its maximum.
