Answer to Question #123259 in Electric Circuits for Fave Eddie.

Question #123259
Three resistors of resistance 5Ω, 3Ω and 4Ω are arranged in parallel between two terminals. Calculate the equivalent resistance.
1
Expert's answer
2020-06-22T11:11:05-0400

Equivalent resistance of N resistors arranged in parallel:


RT=1/i=1N1/RiR_T=1/\displaystyle\sum_{i=1}^N1/R_i


RT=1/(1/5+1/3+1/4)=60/(12+20+15)=60/471.277(Ω)R_T = 1/(1/5 + 1/3 + 1/4) = 60/(12 + 20 + 15) = 60/47 \approx 1.277\quad(\Omega)


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