Finding Magnitude induced EMF in Coil

AI Thread Summary
To find the magnitude of induced EMF in a coil, the relevant equation is e = d/dt(BAN), where B is the magnetic field, A is the area, and N is the number of turns in the coil. It is essential to show your work and the equations used in your calculations to receive assistance. If you're struggling to start, listing the equations related to induced EMF can help clarify the problem. Engaging with the equations will guide you toward the necessary information for your solution. Understanding these fundamentals is crucial for solving the problem effectively.
skaar
Messages
1
Reaction score
0

Homework Statement



15.jpg


Homework Equations



e=d/dt(BAN)

The Attempt at a Solution

 
Last edited:
Physics news on Phys.org
Hi skaar,

Welcome to PF! One of the rules of this forum is that you must make an attempt at solving the problem and then show your work (what equations you used and what numbers you used in them, for example) before we can help.

If you are having trouble getting started on the problem, I would suggest writing down the equations that relate to what they are asking for. Here they want to know the induced emf in the coil; what equations do you know (or can find in the book) that relate to induced emf? Once you have the equations in front of you, they can guide you as to what you need to know for the answr.



skaar said:

Homework Statement



15.jpg


Homework Equations





The Attempt at a Solution

 

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 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
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

EMF induced by a magnet falling through a coil
Replies
4
Views
3K
Induced EMF in a rotating ring
Replies
14
Views
1K
Induced EMF in a coil outside a solenoid
Replies
15
Views
7K
Faraday's law help -- Induced EMF vs. time graph
Replies
7
Views
2K
The Magnitude of Induced EMF in a Moving Rod?
Replies
8
Views
4K
Calculate the induced EMF of a rotating loop
Replies
7
Views
3K
Drop height of a magnet vs. induced EMF in a solenoid
Replies
41
Views
7K
EMF induced in moving rod in B-field, why is "L" length of wire frame?
Replies
4
Views
745
Induced EMF in a moving Loop Conductor
Replies
3
Views
2K
Induced EMF graph of a very small wire moving through a coil
Replies
3
Views
2K

Hot Threads

Recent Insights

Back
Top