Question: (a) Using Eq. (26.17) for the current in a discharging capacitor, derive an expression for the instantaneous power P = i2R dissipated in the resistor.

(a) Using Eq. (26.17) for the current in a discharging capacitor, derive an expression for the instantaneous power P = i2R dissipated in the resistor.
(b) Integrate the expression for P to find the total energy dissipated in the resistor, and show that this is equal to the total energy initially stored in the capacitor:

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