What property does capacitance have in an AC...

Question 1 / 205eccefa3bacbc34ba4d480be

Question 1 of 205eccefa3bacbc34ba4d480be

What property does capacitance have in an AC circuit?

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5eccefa3bacbc34ba4d480be

What property does capacitance have in an AC circuit?

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🔍 Key Concepts

• Capacitance in AC vs DC circuits – how a capacitor behaves differently when voltage is steady versus when it is changing • Relationship between voltage and current in a capacitor – current flow depends on the rate of change of voltage (dV/dt) • Which component resists change in voltage vs change in current – compare capacitor and inductor behavior

💭 Think About

• Think about what happens to the voltage across a capacitor if you try to change it suddenly. What does the capacitor "do" in response? • In a purely DC circuit, what happens to current after a capacitor is fully charged? How is that different in AC where voltage is constantly changing direction and magnitude? • Which device is used to smooth or filter rapid voltage changes in power supplies: a capacitor or an inductor?

✅ Before You Answer

• Make sure you know which device resists change in current (that’s not the capacitor) and which resists change in voltage • Eliminate any options that sound like diode behavior, such as allowing current in only one direction or rectifying current • Ask whether the correct property would still make sense for a sinusoidal AC voltage that is always changing, not steady like DC

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Question 1 of 20

What property does capacitance have in an AC circuit?

stop current flow once the capacitor is fully charged

allow current flow in only one direction

oppose any change in circuit voltage

rectify the current

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Question 1 / 205eccefa3bacbc34ba4d480be

Question 1 of 205eccefa3bacbc34ba4d480be

What property does capacitance have in an AC circuit?

Back

Question 1 of 20

5eccefa3bacbc34ba4d480be

What property does capacitance have in an AC 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?

Quick actions

— No credit card needed