Physics
Calculate the effective resistance between the points A and B in the circuit shown in figure.
Current Electricity
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Answer
In the circuit, there are four parts. In the first part, three resistors of 1 Ω each are connected in series. If the equivalent resistance of this part is R's then
R's = (1 + 1 + 1) Ω = 3 Ω
In the second part, three resistors of 2 Ω each are connected in series. If the equivalent resistance of this part is R''s then
R''s = (2 + 2 + 2) Ω = 6 Ω
In the third part, the two parts of resistance R's = 3 Ω and R''s = 6 Ω and 2 Ω are connected in parallel. If the equivalent resistance is Rp then
∴ Rp = 1 Ω
In the fourth part 1 Ω, (Rp = 1 Ω) and 1 Ω are connected in series in between points A and B.
Hence, the equivalent resistance is 1 + 1 + 1 = 3 Ω
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