My Math Forum Find power in controlled voltage

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 March 14th, 2017, 03:37 PM #1 Member   Joined: Nov 2016 From: Ireland Posts: 67 Thanks: 2 Find power in controlled voltage Right so I've done a whole Mesh analysis thing and found the current and all that good stuff. Now it asks me to find the power of the controlled voltage source. It's a diamond shape - But with the neg and positive symbols inside. But it says: 10 ix beside it. I've worked out that 0.34 = ix so is it's voltage simply 3.4V * Current Current here seems to be equal to (i1-i2) Hmmm tricksy... So is that it ?
 March 14th, 2017, 04:22 PM #2 Senior Member   Joined: Feb 2016 From: Australia Posts: 1,293 Thanks: 442 Math Focus: Yet to find out. Bit hard to be sure without a diagram... But i suppose it's o.k. Test, if possible with other power relations, $P = IV,$ $P = I^2 R,$ $P = \frac{V^2}{R}.$
 March 14th, 2017, 05:15 PM #3 Member   Joined: Nov 2016 From: Ireland Posts: 67 Thanks: 2 Here we go - I put the arrows in myself as you can probably tell That lil 10ix dude at the bottom there.
 March 14th, 2017, 05:31 PM #4 Member   Joined: Nov 2016 From: Ireland Posts: 67 Thanks: 2 Apologies for the massee picture btw - photobucket does that - such a suckee host. This was the math I got P=VI V=10*0.34A P=3.4(i1-i2) P=3.4(i1-i2) P=3.4(18/53)-3.4(-6/53) 306/265+17/45 731/477 â‰ˆ1.53W

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