TRUE OR FALSE
1. If a magnet and a wire are moving at 5m/s to the right then there will be an induced current.
2.If a conducting rod is moved perpendicular to the field lines of a magnet a current will be induced.
3.When the flux through a loop changes a current is induced.
4.The induced e.m.f (electromotive force) tends to oppose the flux causing it.
2006-12-20 04:25:41 · 4 answers · asked by ox_monzy_xo 2 in Science & Mathematics ➔ Physics
it isnt my homework...i dnt go to school
its a physics cd i own. and i need to pass the level!!
2006-12-20 04:38:25 · update #1
Is this your homework...?
2006-12-20 04:30:30 · answer #1 · answered by HolyFuck 2 · 0⤊ 1⤋
1. False, they are moving in the same direction at the same speed therefore there would be no change in flux through the loop.
2. False, I would say false as this is talking about a conducting rod, not a complete loop or circuit. There would be no induced current on a rod.
3. and 4. By Lenz's Law these are both true. Induced current is proportional to change in flux through a loop and the induced current will produce a magnetic field which tends to oppose the change in flux.
2006-12-20 06:05:23 · answer #2 · answered by msi_cord 7 · 1⤊ 0⤋
1. False. Since they are both moving in the same direction and at the same speed there is no relative motion. So, it is just the same as if they were sitting still.
2. don't know
3. True.
4. True.
2006-12-20 04:58:49 · answer #3 · answered by thegreatdilberto 2 · 0⤊ 0⤋
i might say i'm satisfied with being 33. If i could be youthful...around 23 or 24 and nevertheless be as mature and knowledgable after having long surpassed by way of each little thing I surely have...then i might in keeping with danger take it down some years.
2016-12-30 17:01:43 · answer #4 · answered by Anonymous · 0⤊ 0⤋