Basic scientific concepts electrotechnology
109
R3 Ω
VT 12V
R1 Ω
IS
I3
IT
FIGURE 5.
∴ I
V
R
3
3
12
2
V
6
A
Ω
.
R3 Ω
VT 12V
RS Ω
IS
I3
I T
FIGURE 5.
Since the resistors are now parallel, the equivalent resistance may found from
1 1
1 1
6
1 1
6
2
6
2
3
R R
R
R
R
T S
T
T
T
1
1
6
6
3
∴
Ω Ω
Ω Ω
Ω
Ω
The total current is
I
V
R
T
T
T
V
3
4
12
Ω
Let call the current flowing through resistor I3.9
Equivalent circuit for Example 2.10
Simplified equivalent circuit for Example 2
