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Question

The equivalent resistance between the points A & B in the circuit is:


A
R1+R2
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B
R1+R2+R3
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C
R1+R3
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D
R2+R3
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Solution

The correct option is B R1+R2+R3
Components connected in series are connected along a single path, so that the same current flows through all of the components.
For series combination, equivalent resistance,
Req=R1+R2+R3+...+Rn.
Here R1, R2 & R3 are in series
Req=R1+R2+R3.

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