Soru
What is the voltage across a 4.5-mu F capacitor if the charge on one plate is 0.12 mC? How much energy is stored?
Çözüm
4.7
(221 Oylar)
Canel
Elit · 8 yıl öğretmeni
Uzman doğrulaması
Cevap
To find the voltage across the capacitor, we can use the formula:
where:-
is the voltage across the capacitor,-
is the charge on one plate of the capacitor,-
is the capacitance of the capacitor.Given:-
-
Substitute the given values into the formula:
So, the voltage across the capacitor is 26.67 V.Next, to find the energy stored in the capacitor, we can use the formula:
Substitute the given values into the formula:
So, the energy stored in the capacitor is 1.589 mJ.