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Electricity — Physics STD 10 — Question

ICSE BoardEnglish MediumSTD 10PhysicsElectricity1 Mark
Question
State expression for Resistance connected in parallel.
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Answer

$\frac{1}{ R }=\frac{1}{ r _1}+\frac{1}{ r _2}+\frac{1}{ r _3}$ resistances in parallel.

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