Orientation of Magnetic Field and Coil

AI Thread Summary
The discussion revolves around understanding the relationship between the induced electromotive force (e.m.f.) in a coil and various factors such as the coil's position, flux density, area, and angular velocity when rotating in a magnetic field. The user initially seeks clarification on which diagram best represents the situation described in their A-Level specification. After some consideration, they conclude that they have resolved their confusion regarding the diagrams. The focus is on the qualitative aspects of electromagnetic induction in a rotating coil. This highlights the importance of visual aids in comprehending complex physics concepts.
jimbobian
Messages
52
Reaction score
0

Homework Statement



Not technically a homework problem, has arisen as a point on my A-Level specification and I'm a little unsure as to how they are seeing this situation.

"Relate qualitatively the instantaneous e.m.f. induced in a coil rotating at right angles to a magnetic field to the position of the coil, flux density, coil area and angular velocity;"

I have attached two diagrams and am not sure which one they are describing. I think it's most likely to be diagram A. Could someone confirm this for me please?

Homework Equations


The Attempt at a Solution

 

Attachments

  • magfieldorientation.jpg
    magfieldorientation.jpg
    13.6 KB · Views: 607
Last edited:
Physics news on Phys.org
Ignore this now, figured it out!
 
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
Back
Top