alleryStart learning →For series resistors R1, R2, R3, equivalent resistance is:
ASum: R_eq = R1 + R2 + R3
BJust R1
CR1 + R2 only
DR1 × R2 × R3
Answer & Solution
Correct answer: A. Sum: R_eq = R1 + R2 + R3
**Series:** same current through all; voltages add. R_eq = ΣR_i.
**Voltage divider:** V_i = V_total × R_i/R_eq.
Series sums resistance; parallel reduces it.
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