Most of you are probably thinking I'm just getting answers... I'm not and I'm practicing for an exam and I have no idea what's going on. My professor is not helping nor are the tutors and my classmates are actually in the same situation as me... I need help with this problem... (I honestly have 3 questions posted here because no one wants to help and everyone has helped me get a B+ on my last exam thanks). Please help me I'm desperate.
A circular conducting coil with radius 2.55 cm is placed in a uniform magnetic field of 0.858 T with the plane of the coil perpendicular to the magnetic field. The coil is rotated 180° about the axis in 0.222 s. (a) What is the average induced emf in the coil during this rotation? (b) If the coil is made of copper (ρ = 1.67 10−8 Ω·m) with a diameter of 0.900 mm, what is the average current that flows through the coil during the rotation?
2007-03-20 14:41:48 · 2 answers · asked by Sir Guitarist 2 in Science & Mathematics ➔ Physics
Good explanation on your problems can be found here. http://hyperphysics.phy-astr.gsu.edu/hbase/electric/farlaw.html
The key idea is that the generated emf depends on the rate of change in the flux B dot A through the coil, so either B or A perpendicular = Acos(angle) to B can change to produce the change in Flux.
2007-03-20 15:08:27 · answer #1 · answered by meg 7 · 0⤊ 0⤋
Faradays lae describe how the emf is led to. while a conductor cuts various flux an emf is led to. there are 2 forms of led to emf one is statistical and yet another is mutully led to emf. yet lenz regulation describes , whwhen the path is closed potential while the conductor fors a closed course, a modern flows by way of led to emf. This modern tries to oppse the reason for led to emf.
2016-10-19 05:19:03 · answer #2 · answered by ? 4 · 0⤊ 0⤋