Equation for the emf for a rotating loop

AI Thread Summary
The discussion focuses on finding the equation for the electromotive force (emf) generated by a rotating loop in a uniform magnetic field. The user expresses confusion about the equation needed to solve their virtual lab problem, which involves varying voltage and a constant peak voltage. They provide specific details about the loop's radius, movement, and rotation speed. Another participant confirms that the relevant equation for maximum emf is given by the formula EMF = ABω, where A is the area of the loop, B is the magnetic field strength, and ω is the angular velocity. Understanding this equation is essential for solving the problem effectively.
lampshader
Messages
36
Reaction score
0

Homework Statement



Describe the way that the loop is facing for this value to be a maximum. What is the equation for the emf for the rotating loop?

Homework Equations



I don't know.

The Attempt at a Solution



I can't really attempt the problem without the equation. This is a virtual lab interactive and I have several peices of information happening:

1) Voltage: Varies and Reaches a Maxima and Minima
2) Peak Voltage: is constant at the maxima.
3) Feild Type: Uniform
4) Loop Radius: 50cm
5) Loop Movement: Automatic
6) Rotation Speed: 2.0 cyc/s

Yeah, I just don't know the equation for an emf for a rotating loop, If i had that, I wouldn't be so stuck, you know?


Thanks for any help in advance.
 
Physics news on Phys.org
Would, Motional EMF be the equation that I am looking for?:
\xi = \nu * B * L

yes?
 
Maximum EMF = ABω where A is the area, B is the field and ω is the angular velocity.
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

What EMF is induced in the loop at t=0?
Replies
6
Views
2K
EMF in bigger loops kept on both sides of a small loop
Replies
2
Views
2K
Inductive charging: Emf induced in two coil loops
Replies
4
Views
2K
EMF induced in rotating rod inside uniform magnetic field
Replies
6
Views
3K
Calculating EMF Induced by Moving Rectangular Loop
Replies
2
Views
1K
Electric Flux Equation for Rotating Loop?
Replies
3
Views
2K
Find EMF - Loop inside a loop generating a magnetic field
Replies
10
Views
3K
Different EMFs joined in parallel
Replies
5
Views
2K
How to find the maximum induced current for a diamond-shaped loop?
Replies
1
Views
2K
Calculating Induced EMF in a Bent Loop with Changing Magnetic Field
Replies
9
Views
3K

Hot Threads

Recent Insights

Back
Top