Equivalent resistance
Electricity and Magnetism
Level
1
Find the equivalent resistance between A and B.All the resistors shown in figure have resistance R.
R/4
R/2
R/8
3R
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1 solution
As it is a case of wheatstone bridge the resistance between c and d will go out of picture leaving 3 wings left having resistances 2R,R and 2R then as three wings are in parallel connection 1/r(net)=1/2R+1/2R+1/R r(net)=R/2.