Question

Consider a series RC circuit with an R = 3.0 Ω and a capacitance of 20 µF being charged to a voltage of 9.0 V. (Note, you will not include units in your answers.)

(a) If you wished the charging of this capacitor to have a vertical displacement of 4.0 DIV from 0 charge to fully charged, what value must you set the vertical gain on the oscilloscope to achieve this? V/DIV

(b) What is the value of the horizontal sweep that you would need to use if you wished the characteristic time constant of this circuit to span 2.0 DIV on the oscilloscope screen? µs/DIV Additional Materials

Answer 1

Answer:

RC circuit with an R = 3.0 Ω and a capacitance of 20 µF

voltage = 9.0 V

PART A)

vertical displacement = 4.0 DIV

vertical gain = 9 V /4 DIV = 2.25V/DIV

PART B )

For RC Cuircit

RC =  3.0 Ω x 20 µF = 60 µs

So for 2DIV = 60 µs

Ans For each DIV = 30 µs