(a)
The time required to lose 90% of its initial charge and energy
Explanation of Solution
Given:
Capacitor,
Resistor,
Voltage of the battery,
Formula used:
Charge on the capacitor in time t is given by,
Where,
Q= charge on the capacitor
C= capacitance
V = voltage
Energy stored in the capacitor is,
Calculation:
Charge on the capacitor is given by,
- The new charge is given by.
Thus, new voltage is,
Voltage of the capacitor in time t is given by,
- Energy stored in the capacitor is,
Thus, new charge is,
So, new voltage is,
Voltage of the capacitor in time t is given by,
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Chapter 18 Solutions
COLLEGE PHYSICS
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