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Question: There are 8 equal resistances R. Two are connected in parallel, such four groups are connected in se...

There are 8 equal resistances R. Two are connected in parallel, such four groups are connected in series, the total resistance of the system will be

A

R / 2

B

2 R

C

4 R

D

8 R

Answer

2 R

Explanation

Solution

Resistance of parallel group =R2= \frac{R}{2}

∴\thereforeTotal equivalent resistance = 4×R2=2R4 \times \frac{R}{2} = 2R