jellygabi
contestada

Two resistors, R1 and R2, are
connected in parallel. R2 = 221.0
ohms, and the equivalent resistance
of the combination is 120.7 ohms.
What is the value of R1?
(Unit = ohm)

Respuesta :

LammettHash

The reciprocal of the total resistance is equal to the sum of the reciprocals of the component resistances:

1/(120.7 Ω) = 1/R₁ + 1/(221.0 Ω)

1/R₁ = 1/(120.7 Ω) - 1/(221.0 Ω)

R₁ = 1 / (1/(120.7 Ω) - 1/(221.0 Ω)) ≈ 265.9 Ω

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