Concept explainers
(a).
To express: The total resistance
The total resistance is equal to
Given information:
The total electrical resistance
Calculation:
Substitute
Hence, the total resistance is
(b).
To find: The resistance in the second resistor if the total resistance of the pair is at least
The second resistance is greater than or equal to
Given information:
The total electrical resistance
Calculation:
From the part (a):
Since the total resistance of the pair is at least
Solve for
Hence, the second resistance is greater than or equal to
Chapter 2 Solutions
PRECALCULUS:GRAPHICAL,...-NASTA ED.
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