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Given $V=35+70j$ and $I=7+5j$. Rewrite $V$ and $I$ in polar form and then find $Z=\dfrac{V}{I}$. Leave your answer in polar form.
in MAT1581 by Diamond (40.2k points) | 7 views

1 Answer

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V= 35 + 70j

  r = √(35^2 + 70^2) = √6 125

tanx  = 70/35

      x = 63 degrees

V = √6125cis63 degrees

I= 7 + 5j

  r = √(7^2 + 5^2) = √74

tanx  = 5/7

      x = 36 degrees

V = √74cis36 degrees

V/I = √6 125/74cis(63-36)

       = √6 125/74cis27 degrees
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