Problem: The switch in the figure has been in position a for a long time. It is changed to position b at t = 0 s.A. What is the charge Q on the capacitor immediately after the switch is closed?B. What is the current I through the resistors immediately after the switch is closed?

FREE Expert Solution

Charge on a capacitor is expressed as Q = CV

Expression of voltage across the capacitor is:

VC(t)=V0e-tτ

or

VC(t)=V0e-tRC

Since the time constant τ is given as, τ = RC

View Complete Written Solution
Problem Details


The switch in the figure has been in position a for a long time. It is changed to position b at t = 0 s.

A. What is the charge Q on the capacitor immediately after the switch is closed?

B. What is the current I through the resistors immediately after the switch is closed?

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the !! Resistor-Capacitor Circuits concept. If you need more !! Resistor-Capacitor Circuits practice, you can also practice !! Resistor-Capacitor Circuits practice problems.