- #1
fhqwgads2005
- 23
- 0
I was recently given a problem I can't quite wrap my head around. Here's the situation:
shttp://pics.bbzzdd.com/users/theman/inductorbulbs.gif
(you'll have to copy the link, - the s, into your address bar)
Oh-- and i just realized a mistake with the drawing, the dots should be x's to indicate the field is going into the page.
We have a solenoid creating an increasing magnetic field into the screen. A wire loop goes around the solenoid with two lightbulbs connected in series. The induced EMF is counter clockwise. Then, another wire is connected as shown to the top and bottom of the wire loop.
Question: what happens to the lightbulbs when the wire is connected?
My initial thought was that the light bulb on the left would turn off (short circuited) and the one on the right would get brighter.
But then I was thinking, what if the wire were just flipped over and was on the other side. Would the light bulbs then switch, and the right one would go off? I don't see why this would be true. Why should the physical orientation of the added wire affect the circuit?
shttp://pics.bbzzdd.com/users/theman/inductorbulbs.gif
(you'll have to copy the link, - the s, into your address bar)
Oh-- and i just realized a mistake with the drawing, the dots should be x's to indicate the field is going into the page.
We have a solenoid creating an increasing magnetic field into the screen. A wire loop goes around the solenoid with two lightbulbs connected in series. The induced EMF is counter clockwise. Then, another wire is connected as shown to the top and bottom of the wire loop.
Question: what happens to the lightbulbs when the wire is connected?
My initial thought was that the light bulb on the left would turn off (short circuited) and the one on the right would get brighter.
But then I was thinking, what if the wire were just flipped over and was on the other side. Would the light bulbs then switch, and the right one would go off? I don't see why this would be true. Why should the physical orientation of the added wire affect the circuit?
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