PYTHON: An RC DC-circuit has its switch closed at time t = 0. Prompt the user to enter the values of the battery voltage V in volts, the resistance R in Ohms, and the capacitance C in microfarads. Convert the capacitance to C in Farads. Using matplotlib, make a plot of the current versus time for times up to 10RC. The current is given by I(t) = (V/R) exp(-t/RC).