Calculate the energy of a 0.4 nF capacitor connected to a 220 V current source.

Capacitor energy:
W = C * U² / 2 = (0.4 * 10 ^ -9) * 220² / 2 = 9.68 * 10 ^ -6 J.
Answer: the energy of the capacitor is 9.68 * 10 ^ -6 J.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.