(b) A resistor made of a carbon rod has uniform cross-sectional area of 5.0 mm When a potential difference of 15.0 V is

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(b) A resistor made of a carbon rod has uniform cross-sectional area of 5.0 mm When a potential difference of 15.0 V is

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B A Resistor Made Of A Carbon Rod Has Uniform Cross Sectional Area Of 5 0 Mm When A Potential Difference Of 15 0 V Is 1
B A Resistor Made Of A Carbon Rod Has Uniform Cross Sectional Area Of 5 0 Mm When A Potential Difference Of 15 0 V Is 1 (12.17 KiB) Viewed 61 times
(b) A resistor made of a carbon rod has uniform cross-sectional area of 5.0 mm When a potential difference of 15.0 V is applied across the ends of the rod, the rod carries a current of 4.0 mA. The resistivity of carbon is 3.5 x 10-50m. Calculate the (1) resistance of the rod (ii) length of the rod. [4 marks
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