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Carbon resistor has resistance specified by three bands having colours red, yellow and black. If the resistor is remolded to make a resistor twice of previous length, the new colour code will be
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$\mathrm{R}_{i}=24 \times 10^{0}=24\, \Omega$

After molding $\mathrm{R}_{f}=4 \mathrm{R}_{i}=96\, \Omega$

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