In: Physics
A 5.00-MΩ Ω resistor and a 5.00-μ μ F capacitor are connected in series with a power supply. 1) What is the time constant for the circuit
Part B A 20.0-μ μ F capacitor has an initial charge of 100.0 μ μ C. 1) If a resistance of 20.0 Ω Ω is connected across it, what is the initial current through the resistor?
Part C A 12.5-μ μ F capacitor is charged to a potential of 30.0 V and then discharged through a 65.0 Ω Ω resistor. 1) How long after discharge begins does it take for the capacitor to lose 90.0% of its initial charge? (Express your answer to three significant figures.) ms m s 2) How long after discharge begins does it take for the capacitor to lose 90.0% of its initial energy? (Express your answer to three significant figures.) ms m s 3) What is the current through the resistor at the time when the capacitor has lost 90.0% of its initial charge? (Express your answer to three significant figures.) mA m A 4) What is the current through the resistor at the time when the capacitor has lost 90.0% of its initial energy? (Express your answer to three significant figures.) mA