First, we need to find the total resistance in the circuit. We have two resistors in series: $1.8\,\text{k}\Omega$ and $2.2\,\text{k}\Omega$. The total resistance is the sum of these two resistances:
$R_\text{total} = R_1 + R_2 = 1.8\,\text{k}\Omega +
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