Question

At time t=0, an initially uncharged capacitor of 20

Answer 1

Time constant for the circuit   ?   =   R * C

                                                         = 100 * 20 * 10^-6

                                                         = 0.002 s

    C * V₀   = 20 * 10^-6 * 6

                  = 1.2 * 10^-4    C

   a.   Charge at the capacitor is given by

         q   =   C * V₀ * (1   -   e^-t/?)

t   =   0.0010 s

         q = 1.2 * 10^-4 * (1   -   e^{-0.0010/0.002})

               = 4.722*10^ -5 C