Can anyone tell me how the answer is 4:1
it's Urgent plsssss!!!!
I will mark you as a BRAINLIEST if your answer is correct
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LETS TAKE ONLY TWO CASES
resistance in series(Rs) =R+R=2R
similarly
resistance in parallel(Rp)=1/R+1/R=2/R. (as in parallel the resistance is inverse)
Ratio=Rs/Rp
=2R/R/2
=4:1
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