Physics (12th Grade)
Electricity
What is the total resistance in a series circuit with three resistors, R1, R2, and R3?
R_total = R1 + R2 + R3
R_total = 1/(1/R1 + 1/R2 + 1/R3)
R_total = R1 * R2 * R3
R_total = R1 - R2 - R3
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