The specification on a heater coil is 250V, 500W. Calculate the resistance of the coil. What will be the resistance of a coil of 1000W to operate at the same voltage?
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- The power consumed by a coil of resistance R when connected across a supply v is $\text{P}=\frac{\text{v}^2}{\text{R}}$
- If, $\text{P}=1000\text{w}$
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