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If a capacitor is charged to a voltage V and then disconnected from the power so
Practice Questions
Q1
If a capacitor is charged to a voltage V and then disconnected from the power source, what happens to the charge on the capacitor over time?
It remains constant
It decreases exponentially
It increases exponentially
It becomes zero instantly
Questions & Step-by-Step Solutions
If a capacitor is charged to a voltage V and then disconnected from the power source, what happens to the charge on the capacitor over time?
Steps
Concepts
Step 1: Understand that a capacitor stores electrical energy in the form of charge.
Step 2: When the capacitor is connected to a power source, it gets charged to a voltage V.
Step 3: Once the capacitor is fully charged, it is disconnected from the power source.
Step 4: After disconnection, the capacitor is isolated and no longer receives any energy.
Step 5: Over time, the charge on the capacitor starts to decrease.
Step 6: This decrease happens because of leakage, which is the slow escape of charge through the capacitor's materials.
Step 7: The rate of charge decrease is not constant; it follows an exponential pattern, meaning it drops quickly at first and then slows down.
No concepts available.
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