Nominal power is V²/R=(0.120)²/60=0.00024 W=0.24 mW. For worst-case first-order propagation, ΔP/P≈2ΔV/V+ΔR/R=2×10/120+2/60=0.20. Thus ΔP≈0.048 mW, which rounds to 0.0 mW at one decimal place and lies in the published 0.0–0.1 range. The unrounded value clarifies why the reported precision looks coarse.
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