a. A capacitor ( C = 10 μ F) is in a series circuit with a resistor ( R = 100 Ω ). They are attached to a battery ( V = 120 V). What is the initial current when the circuit is switched on? b. What is the current through the circuit after 2 milliseconds? c. What is the voltage across the resistor after 2 milliseconds?
a. A capacitor ( C = 10 μ F) is in a series circuit with a resistor ( R = 100 Ω ). They are attached to a battery ( V = 120 V). What is the initial current when the circuit is switched on?
b. What is the current through the circuit after 2 milliseconds?
c. What is the voltage across the resistor after 2 milliseconds?
d. Based on your answer to part (c), what must be the voltage across the capacitor after 2 milliseconds?
e. What is the charge on the capacitor after 2 milliseconds?
f. At what time will the current through the circuit have decreased by 95%?
g. Write an equation that tells you the voltage across a capacitor at any given time as it is charging.
h. What will the voltage across the capacitor be when the current has decreased by 95%?
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