Where Does Lenz's Law Apply in an Automotive Setting?

AI Thread Summary
Lenz's Law explains the direction of induced current when a magnet moves through a coil, stating that the induced current will oppose the change in magnetic flux. In the discussed scenario, as a bar magnet falls through a coil, the induced current flows anti-clockwise towards the datalogger, indicating a reaction to the magnet's approach. This principle can be applied in automotive settings, such as in regenerative braking systems where the motion of the vehicle generates electricity to recharge the battery. Understanding Lenz's Law is crucial for optimizing energy recovery and efficiency in electric and hybrid vehicles. The discussion emphasizes the practical applications of this law in real-world automotive technology.
Masafi
Messages
58
Reaction score
0
A bar magnet is dropped from rest through the centre of a coil of wire which is connected to a resistor and datalogger.

The resistor and datalogger are to the left in the diagram, and the coil on the right side.

Add an arrow to the wire to show the direction of the induced current as the magnet falls towards the coil.

The arrow is drawn going towards the datalogger side (left side) i.e. anti clockwise.

How is this worked out?
 
Physics news on Phys.org
First and foremost, the key is in what Lenz's Law states.
Ponder over what Lenz's law says - and try to apply it to the situation here.
 
Fightfish said:
First and foremost, the key is in what Lenz's Law states.
Ponder over what Lenz's law says - and try to apply it to the situation here.

So a current is induced upwards, and that goes anti clockwise?
 
Is anyone able to tell me were lenz's law would occur in an automotive situation
 

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

How does an eddy current brake work exactly?
Replies
2
Views
2K
Understanding Lenz' Law as it applies to a magnet falling in a tube
Replies
1
Views
2K
What force does the current carrying coil feel?
Replies
4
Views
2K
Find the induced EMF and Lenz' law
Replies
4
Views
2K
Induced current in a square coil by a current-carrying wire
Replies
2
Views
1K
What is the direction of the current in the given image?
Replies
18
Views
3K
Can Graphene Wire Coils Replace Copper in Generators?
Replies
15
Views
2K
Archived Lenz' Law Scenarios for two wires with varying distance between them
Replies
1
Views
2K
Lenz's law - some doubts in this
Replies
17
Views
4K
Force on a Magnet in Lenz's Law
Replies
31
Views
4K

Hot Threads

Recent Insights

Back
Top