(a) Time constant
C = t/R
= 22 s ÷ 10000 W = 2.2 × 10-3 F =
values would not be suitable, because there would only be two values
before the time constant. This would not give a graph that's easy
to draw well. If we reduced the sampling time to 5 s, we would
find ourselves being rushed. This would increase the possibility
of mistakes in the reading.