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Question
What is the equivalent resistance between A and B in the given circuit (Fig?)
Solution
Between A and B, the series combination of two resistors of resistances 2 ohm each is connected in parallel with the 1 ohm resistor.
:. Equivalent series resistance between A and B, R, = 2+2 = 4 Ω
Now, between A and B this 4 Ω resistor is connected in parallel with 1Ω resistor.
Equivalent resistance between A and B, R = `(1/4 + 1/1)^-1= (5/4)^-1 = 4/5`Ω
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