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3 years ago

A 1.5m wire carries a 7 A current when a potential difference of 63 V is applied. What is the resistance of the wire? ohms

1 answer:

3 0

To find the resistance, the formula you need to use is
$r = \frac{v}{i}$
whereby i reprsents the current and v represents the potential difference.
therefore,
r=63/7
r=9 ohms

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