Practice Numerical Example 3.1 (3.4) - Fundamentals of AC Circuits - Basics of Electrical Engineering
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Numerical Example 3.1

Practice - Numerical Example 3.1

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Practice Questions

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Question 1 Easy

What is the formula for inductive reactance?

💡 Hint: Remember to calculate angular frequency using the frequency given.

Question 2 Easy

What is the impedance of a resistor in an AC circuit with 20Ω resistance?

💡 Hint: Impedance is purely real for resistors.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the formula for total impedance in an RLC series circuit?

Z = R + jX
Z = R + X_L - X_C
Z = R + j(X_L + X_C)

💡 Hint: Think about how the individual components relate within the impedance formula.

Question 2

Inductive reactance is represented by which symbol?

True: X_L
False: X_C

💡 Hint: Recall what each symbol stands for in reactance terms.

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Challenge Problems

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Challenge 1 Hard

A series RLC circuit with components of 10Ω resistor, 0.25 H inductor, and 50μF capacitor attached to a 120V, 60 Hz AC supply. Determine the total impedance and the phase angle.

💡 Hint: Use standard calculations for XL and XC and remember to sum them.

Challenge 2 Hard

In a series circuit of a 100Ω resistor and an inductor with X_L of 25Ω, if both components are subjected to an AC voltage of 240V, calculate the RMS current and explain the significance of the phase relationship.

💡 Hint: Remember to compute total impedance and then use Ohm's law for current.

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