If there is no resistance in either leg of a...

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Question 1 of 20NrWs7gyyzEf8qsRpt2Zc

If there is no resistance in either leg of a circuit with an inductance of 5 henrys in parallel with a capacitance of 1 microfarad, what is the equivalent impedance of the parallel network circuit?

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Question 1 of 20

NrWs7gyyzEf8qsRpt2Zc

If there is no resistance in either leg of a circuit with an inductance of 5 henrys in parallel with a capacitance of 1 microfarad, what is the equivalent impedance of the parallel network circuit?

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🔍 Key Concepts

• Impedance of an inductor in ohms as a function of frequency and inductance • Impedance of a capacitor in ohms as a function of frequency and capacitance • How parallel impedances combine (similar to parallel resistors)

💭 Think About

• Write the formulas for inductive reactance and capacitive reactance, and then for impedance of an ideal inductor and capacitor with no resistance. What happens when these two reactances are equal in magnitude but opposite in sign? • Think about the condition called resonance in an LC circuit. At resonance in a parallel LC circuit with no resistance, does the total current drawn from the source become very large or very small? What does that imply about total impedance? • Compare your conclusion with the answer choices: which one best matches the behavior of a parallel LC circuit at resonance when there is no resistance at all in either leg?

✅ Before You Answer

• Verify the formula: Inductive reactance (X_L = 2\pi f L) and capacitive reactance (X_C = \frac{1}{2\pi f C}). • Check the resonant frequency condition: (X_L = X_C). At that point, determine whether the net current from the source is maximum or minimum for a given applied voltage. • Before picking an option, decide clearly: at resonance in an ideal parallel LC circuit, is the equivalent impedance very high (approaching open circuit) or very low (approaching short circuit)?

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Question 1 of 20NrWs7gyyzEf8qsRpt2Zc

If there is no resistance in either leg of a circuit with an inductance of 5 henrys in parallel with a capacitance of 1 microfarad, what is the equivalent impedance of the parallel network circuit?

Back

Question 1 of 20

NrWs7gyyzEf8qsRpt2Zc

If there is no resistance in either leg of a circuit with an inductance of 5 henrys in parallel with a capacitance of 1 microfarad, what is the equivalent impedance of the parallel network circuit?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

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— No credit card needed