charge of 4.71 µC is discharged through a 1.45-kΩ resistor. (a) Calculate the current in the resistor 9.00 µs after the resistor is connected across the terminals of the capacitor. (Let the positive direction of the current be define such that dQ dt > 0) How is the instantaneous current related to the potential difference across the capacitor? mA (b) What charge remains on the capacitor after 8.00 µs? µC (c) What is the (magnitude of the) maximum current in the resistor?
Ohm's law
Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.
Path of Least Resistance
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A 2.00-nF capacitor with an initial charge of 4.71 µC is discharged through a 1.45-kΩ resistor.
(a) Calculate the current in the resistor 9.00 µs after the resistor is connected across the terminals of the capacitor. (Let the positive direction of the current be define such that
dQ
dt
> 0)
How is the instantaneous current related to the potential difference across the capacitor? mA
(b) What charge remains on the capacitor after 8.00 µs?
µC
(c) What is the (magnitude of the) maximum current in the resistor?
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