THE PRACTICE STUDIO
Go slowly. Ask why. Make it yours.
PRACTICE / RC transients
Where does the battery energy go?
An initially uncharged 25 μF capacitor charges fully from an ideal 12 V battery through a resistor.
Find the total energy dissipated in the resistor.
Organize the givens & assumptions
- C = 25 μF
- Source voltage: 12 V
- Initial capacitor charge: zero
- Final state: charging complete
Ideal constant-voltage source, fixed positive resistance, negligible radiation and leakage; wait until charging is effectively complete.
- A
- B
- C
- D
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