Which of the following statements concerning...

Which of the following statements concerning...

Question 1 of 270705eccefa3bacbc34ba4d480de

Which of the following statements concerning AC circuits is correct?

Question 1 of 27070

Q

Which of the following statements concerning AC circuits is correct?

🔍 Key Concepts

• Power factor in AC circuits and its value for purely resistive loads • How inductive reactance (XL) depends on frequency: XL = 2πfL • Phase relationship of current and voltage in inductive vs capacitive circuits

💭 Think About

• For a purely resistive AC circuit, how are current and voltage related in phase? What does that do to power factor? • In an inductive circuit, is there any phase difference between current and voltage? How does that affect true power compared with apparent power? • Recall the formulas for inductive reactance and capacitive reactance. How does each change if you increase the source frequency?

✅ Before You Answer

• Write out the formula for inductive reactance XL and see how it changes with frequency • Recall whether current leads or lags voltage in inductive and in capacitive circuits • Verify which statement matches standard AC theory for purely resistive, purely inductive, or purely capacitive circuits