Qualification > Sciences
Physics Help HERE ONLY !!
MaNa:
--- Quote from: Enia on May 25, 2009, 12:35:05 pm ---Hi. So I had a few questions.
Can anyone please explain the AC generator for me? And also why is the direction reversed every half turn and how does that happen.
Also:
Can you tell me what we are supposed to write in questions where they ask about energy changes that take place? For example for a cart traveling down a ramp and then back up (since the ramp is curved, like skating ramp thingies) Where are we supposed to stop? Like do we also mention sound or just heat and kinetic energy and gravitational potential energy?
Thanks! :)
--- End quote ---
Ac generator
It consists of a recangular coil of wires that is mounted on an axle by turning the axle the coil is made to rotate between the poles of perminent magnet
as the coil rotate the magnetic field thorugh the coil changes and therefore induced EMF between the end f coil
the slip rings allow tthe transfer of the alternating current emf induced Each ring is connected to one end of the CIL WIRE ELECTRICALLY CONNECTED BY CONDUCTING CARBON BRUSH
asus:
help me out with ppr 3 nov/03..
6 (b)...
MaNa:
--- Quote from: asus on May 25, 2009, 02:07:27 pm ---help me out with ppr 3 nov/03..
6 (b)...
--- End quote ---
speed = freqnecy * wavelength
speed / frequency = wavelength
3x10^8/5*10^14
Hope u understand :)
asus:
--- Quote from: ManaH on May 25, 2009, 02:15:52 pm ---
--- Quote from: asus on May 25, 2009, 02:07:27 pm ---help me out with ppr 3 nov/03..
6 (b)...
--- End quote ---
speed = freqnecy * wavelength
speed / frequency = wavelength
3x10^8/5*10^14
Hope u understand :)
--- End quote ---
ermm..i know how to do that..
but..i don't think the answer same as the markschme...
MaNa:
--- Quote from: asus on May 25, 2009, 02:21:27 pm ---
--- Quote from: ManaH on May 25, 2009, 02:15:52 pm ---
--- Quote from: asus on May 25, 2009, 02:07:27 pm ---help me out with ppr 3 nov/03..
6 (b)...
--- End quote ---
speed = freqnecy * wavelength
speed / frequency = wavelength
3x10^8/5*10^14
Hope u understand :)
--- End quote ---
ermm..i know how to do that..
but..i don't think the answer same as the markschme...
--- End quote ---
lemme cheak it
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version