Understanding Impedance in LCR Circuits

What is the primary function of a resistor in an LCR circuit?

• To increase the current flow

• To store electrical energy

• To limit the current flow

• To convert electrical energy into magnetic energy

How do the reactances of the capacitor and inductor relate to each other in terms of phase?

• They are 90 degrees apart

• They are 270 degrees apart

• They are in phase

• They are 180 degrees apart

What mathematical method is used to calculate the total impedance in an LCR circuit?

• Multiplication

• Vector addition

• Subtraction

• Simple addition

In the example provided, what is the reactance of the capacitor?

• 5 ohms

• 15 ohms

• 6 ohms

• 10 ohms

What theorem is used to find the impedance in a right-angled triangle formed by reactance and resistance?

• Theorem of Pythagoras

• Theorem of Ohm

• Theorem of Lenz

• Theorem of Faraday