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35.6 x 35.6 cm ⏐ 14.0 x 14.0 in (300dpi)
SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY
Resistors. Resistors are electronic components that impede the flow of current in an electronic circuit. The coloured bands on the resistors represents the voltage and tolerance of each resistor. Each colour stands for a number. Three bands show the resistors value in ohms and the fourth shows its tolerance.
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