Physics for IGCSE & O level - Electricity (Section 4 - No. 28)
What is the formula for calculating the total resistance of resistors in series?
R_total = 1/R1 + 1/R2
R_total = R1 + R2
R_total = R1 * R2
R_total = R1 - R2
Giải thích
The total resistance in series is the sum of individual resistances.