if two resistances are joined in series then equivalent resistance is S .if they are connected un parallel then equivalent resistance is P. and S=nP.FIND n

if two resistances are joined in series then equivalent resistance is

1.	if two resistances are joined in series then equivalent resistance is S .if they are connected un parallel then equivalent resistance is P. and S=nP.FIND n
Answer» $let \: resistances \: be \: r _{1} \: and \: r _{2} \\ when \: in \: series \: \\ s = r_{1} + r_{2} - eq1\\ when \: in \: parallel \\ p= \frac{r_{1}r _{2} }{r _{1} + r _{2} } - eq2 \\ eq1 \div eq2\\ = \frac{s}{p} = \frac{(r _{1} + r _{2} )^{2} }{r _{1}r _{2}} \\ so \: n \: = \: \frac{ {(r _{1} + r _{2}) }^{2} }{r _{1}r _{2} }$ PLEASE MARK BRAINLIEST

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if two resistances are joined in series then equivalent resistance is S .if they are connected un parallel then equivalent resistance is P. and S=nP.FIND n

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