candacecross3 candacecross3

07-01-2019
Physics

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A 1.5m wire carries a 10 A current when a potential difference of 68 V is applied. What is the resistance of the wire?

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legomyego180 legomyego180

07-01-2019

ohms law:

[tex]v = ir[/tex]
potential difference = Current x Resistance

rearranging to solve for Resistance we get:

[tex]r = \frac{v}{i} [/tex]
plugging in:

[tex]r = \frac{68}{10} [/tex]
[tex]r = 6.8[/tex]

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