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Home Q & A Board Science-Related Homework Help Physics
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nworcest nworcest
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Posts: 18
Rep: 3 0
11 years ago
The charge on a capacitor increases by 15 µC when the voltage across it increases from 81 V to 121 V. What is the capacitance of the capacitor?
 The answer shoul be Farad (F)
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wrote...
#1
11 years ago
Would not the capacitation be something to consider?
wrote...
#2
11 years ago
Is this a trick question? The capacitance does not change with voltage, does it?
wrote...
#3
11 years ago
Capacitance is measured in Coulombs/volt so:

change the uC into C and divide by the change in voltage.

C = Q/V

Capacitance won't change with voltage much, but it will change by frequency.
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