Question 1
In an $RC$ circuit, what does the time constant $\tau$ represent?
Question 2
When a capacitor is charging through a resistor from a battery, how does the current change over time?
Question 3
What happens to the voltage across a capacitor after a long time in a charging $RC$ circuit connected to a constant battery?
Question 4
Which quantity is initially the greatest in a discharging capacitor circuit?
Question 5
A capacitor in an $RC$ circuit is charged and then allowed to discharge. Which statement best describes the energy stored in the capacitor?
