SOLVE PROBLEMS INVOLVING RESISTIVITY AND CONDUCTIVITY
resistors of resistance R₁, R₂ and R₃ are joint together, they’re said to be connected in series. It should be noted that;
The current through a series circuit is the same all over ( I.e I=i₁=i₂=i₃).
The voltage drop across each resistor is different depending on its resistances
The applied voltage (Vs) is equal to the sum of the Potential difference across each resistor. (i.e Vs = V(R₁) + V(R₂) + V(R₃) or V = V₁ + V₂ + V₃
Where Vs = IR; V₁ = IR₁; V₂ = IR₂; V₃ = IR₃
IR = IR₁ + IR₂ + IR₃
⇒(equivalent resistance), Req = R₁ + R₂ + R₃
For n resistors connected in series, the equivalent resistance
Req is given by Req
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