When are the voltage and current in LCR-series AC circuit in phase? A- XL<XC B- XL> XC C. XL=XC D- Indeterminant
Question
When are the voltage and current in LCR-series AC circuit in phase? A- XL<XC B- XL> XC C. XL=XC D- Indeterminant
Solution
The voltage and current in an LCR-series AC circuit are in phase when the inductive reactance (XL) is equal to the capacitive reactance (XC). This is because when XL = XC, the circuit behaves as a purely resistive circuit, and in a purely resistive circuit, the current and voltage are always in phase. Therefore, the correct answer is C. XL=XC.
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