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Question
If a capacitor of 10mF is being charged by a battery of 1V, what is the maximum charge it can charge to?
If a capacitor of 10mF is being charged by a battery of 1V, what is the maximum charge it can charge to?
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Solution
The correct option is B 10mC
Note that the maximum charge the capacitor can charge to will be CV, after infinite amount of time.
Why?
As you can clearly see from the following equation of charging a capacitor in a RC circuit,
q=CE(1−e−tRC)
Thus the maximum charge in this capacitor will also be, Q=CV
Q=10×10−3×1 C=10−2C=10 mC.
Note that the maximum charge the capacitor can charge to will be CV, after infinite amount of time.
Why?
As you can clearly see from the following equation of charging a capacitor in a RC circuit,
q=CE(1−e−tRC)
Thus the maximum charge in this capacitor will also be, Q=CV
Q=10×10−3×1 C=10−2C=10 mC.
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