(a) Calculate the charge stored on a 3-pF capacitor with 20 V across it. (b) Find the energy stored in the capacitor.
(a)60 pC;（b）600 pJ
举一反三
- The switch in the circuit in Figure below has been closed for a long time, and it is opened at t ≥0. Calculate the initial energy stored in the capacitor.[img=525x227]1803a2007b1f992.png[/img]
- After one time constant(τ),the charge on the capacitor will be about 100%
- The driving force behind the recrystallization process is the stored energy of the material
- Geothermal energy is thermal energy ______ and stored in the Earth. A: exploded B: generated C: exterminated D: devastated
- The driving force behind the recrystallization process is the stored energy of the material. A: 正确 B: 错误
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