Solution to Frame 66
FRAME 67
a. more than one
To determine the value of Rt in a parallel circuit, use the
formula:
b. less; smallest
Rt =
1
1 + 1 + 1 , etc.
R1 R2 R3
In the circuit above, you use the formula Rt = ___________.
Solution to Frame 67
FRAME 68
Find Rt
Rt =
1
1 +1 +1
Example
Problem
R1 R2 R3
Rt =
1
R=
1
1 +1 +1
1 + 1 + 1_
R1 R2 R3
R1 R2 R3
=
1
= ___________
1 +1 +1
3
6 12
=
1
= 1 = 12
= ___________
4 +2 +1
7 7
12 12 12
12
= 1.714 Ω
MD0903
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