rvc
  • rvc
@michele_laino
Physics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
rvc
  • rvc
i require help
rvc
  • rvc
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Michele_Laino
  • Michele_Laino
please, what is \(j\)?

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Michele_Laino
  • Michele_Laino
is \(j\) such that \(j^2=-1\) ?
rvc
  • rvc
yup
Michele_Laino
  • Michele_Laino
if \(j^2=-1\) then we can write: \(j^5=j^4 \cdot j=1 \cdot j=j\)
Michele_Laino
  • Michele_Laino
since \(j^4= j^2 \cdot j^2= (-1) \cdot (-1)=1\)
Michele_Laino
  • Michele_Laino
so, what is the right option?
Michele_Laino
  • Michele_Laino
you are studying electrical engineering, I guess :)
rvc
  • rvc
lol yup
rvc
  • rvc
IT enginnering
Michele_Laino
  • Michele_Laino
yes! :)
Michele_Laino
  • Michele_Laino
did you see my answer to your post about a complex circuit?
Michele_Laino
  • Michele_Laino
there, I have used this condition: \[\huge {\text{rot }}{\mathbf{E}} = {\mathbf{0}}\]
Michele_Laino
  • Michele_Laino
which is valid for static electric fields
rvc
  • rvc
wait a sec
rvc
  • rvc
is it c
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Michele_Laino
  • Michele_Laino
I think that magnetic induction phenomena is decreased, so you are right!
Michele_Laino
  • Michele_Laino
please wait a moment
Michele_Laino
  • Michele_Laino
if the load on the secondary circuit is decreased, then the voltage on such circuit is increased, right?
rvc
  • rvc
hmm
Michele_Laino
  • Michele_Laino
More precisely, if the load on secondary circuit is decreased, then the currents inside the primary and secondary circuit increase.
Michele_Laino
  • Michele_Laino
that is a transient phase
Michele_Laino
  • Michele_Laino
nevertheless the power dissipated by the secondary has to be equal to the input power on the primary circuit of the transforemer
Michele_Laino
  • Michele_Laino
transformer* So we get an decreasing of current, and we get, finally a decreasing of energy loss by hysteresis, eddy current and copper

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