<p>If four identical resistors of resistance 8<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>&#937;</mi></math>&nbsp;are first connected in series so as to give an effective resistance&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>R</mi><mi>s</mi></msub></math>&nbsp;and then connected in parallel so as to give an effective resistance&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>R</mi><mi>p</mi></msub></math>, then the ratio&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><msub><mi>R</mi><mi>s</mi></msub><msub><mi>R</mi><mi>p</mi></msub></mfrac></math>&nbsp;is</p>