Created by StemPy LabA carbon resistor has the bands blue, grey, yellow, gold. What is the largest value that its true resistance may have?
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← A metal has a temperature coefficient of 7.0 × 10⁻³ per °C. A coil of it is at 20 °C. To what temperature must it be heated for its resistance to double? Use R = R₀[1 + α(T - 20)].Two cells of emf 5 V and 3 V are joined in series, with their positive terminals together. What is the emf of the combination? →
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