C. On an electrolytic or paper capacitor, the black band indicate that the capacitor is color-coded to military specifications.
Paper Capacitor is a fixed capacitor in which flat thin strips of metal foil, usually aluminium is separated by dielectric material paper.
Paper capacitor is used in electronic noise filtering, signal coupling and decoupling systems, and remote sensing systems.
The coloured bands represent the capacitance value as per the colour code. That is the capacitor is color-coded to specifications.
The black band usually indicate the specification of the capacitor.
Thus, on an electrolytic or paper capacitor, the black band indicate that the capacitor is color-coded to military specifications.
So the correct option is C.
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