What is the voltage at the output (vo) when the switch is Opened and closed in the following
circuit:
Solution:
1 k Ω
Vcc
Gnd
Output,
Vo
1 M Ω
Switch Open
I
I
1 k Ω
Vcc
Gnd
Output,
Vo
1 M Ω
Switch Closed
I
I 2 = 0
I = V/R = 5 / (1001 x 10^3 )
I ≈ 5 x 10 -6 A
Vo = 0 + 10^6 x5 x 10-6 == 5v
Vo=0
“The output is directly Connected to
Ground or 0 v”
1 k Ω
Vcc
Gnd
Output
1 M Ω