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Question
Given the resistances of 1 Ω, 2 Ω, 3 Ω, how will be combine them to get an equivalent resistance of (11/3) Ω?
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Solution
The resistance of the given resistors is,
R1 = 1 Ω, R2 = 2 Ω, R3 = 3 Ω
Equivalent resistance, R' = `11/3` Ω
Consider the following combination of the resistors.
Equivalent resistance of the circuit is given by,
R' = `(2 xx 1)/(2 + 1) + 3`
= `2/3 + 3`
= `11/3` Ω
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