All Questions
33
questions
1
vote
2
answers
36
views
Force between two current carrying conductors
lets say I have two wires. each has a magnetic field due to its current. this magnetic field is present in the other wire causing a force in that other wire. Now I understand that changing the current ...
- 117
0
votes
3
answers
86
views
How can two conductors of unequal lengths exert a force of same magnitude on each other?
I understand Newton's 3rd Law states that if Object (conductor) A exerts a force on Object B, Object A will experience an equal and opposite force. However, in a current carrying conductor Lorentz ...
- 1,816
0
votes
1
answer
76
views
Could you calculate the force between two NON-PARALLEL, straight current carrying wires?
Just like there are ways to solve for the force between two straight parallel wires, what is the way we could find the force between non-parallel wires?
- 4,913
2
votes
1
answer
225
views
Magnetism rail problem
A circuit with resistance $R$ is given. The emf $E$ in the circuit is produced by a conducting rod moving with constant velocity in a uniform perpendicular magnetic field. The rod is sliding on ...
CommunityBot
- 1
0
votes
1
answer
94
views
Apparent singularity of Magnetic field generator by a ♾️ conductor [closed]
Let's assume two perpendicular wires: one is infinitely long and the other's length is $l$ (finite).
The second wire is placed vertically on top of the infinitely long wire and there is a distance of ...
- 11
1
vote
4
answers
208
views
What's the difference between $f= i (l × B)$ and $f= (i∫dl )× B$?
for any current carrying conductor of any arbitrary shape in uniform magnetic field experiences a force given by F = i (l × B) where l is length between end and start points of the conductor and in f=...
- 48.4k
0
votes
0
answers
26
views
Where does force act in two parallel current carrying conductors?
F=ILB.so consider length as 5 m and I as 2 ampere and B as 5 T.so the force is 50 N.does this 50 N act at one point or equally applied on full length like pressure.So what does force/length in this ...
0
votes
1
answer
66
views
Force and magnetic field
what is the force on the piece of wire from the infinite conductor?? what is the force on the infinite conductor from the piece of wire??
1
vote
3
answers
250
views
Why is the cross product used in electrodynamics [closed]
For example, $F = I \times B$. Why would the force be perpendicular to both the magnetic field and the current? Why would the resultant force be totally unlike its 2 sources; this could be likened to ...
- 22.4k
0
votes
1
answer
175
views
How is Lorentz Force $BQv=BIl$?
The formula for Lorentz Force on moving charge is $$F=BQv$$ which for current carrying wire is modified to $$F=BQv$$$$=BQ\frac lt$$$$=BIl$$
Where $l$ is the length of the wire inside the magnetic ...
- 6,636
0
votes
2
answers
2k
views
Will solenoid expansion take place when current is flowing though it?
I came across this when doing my revision exam paper and had this doubt. I wanted to ask whether a solenoid will expand radially outwards when current flows through it.
(The actual question was ...
- 12.1k
3
votes
2
answers
735
views
Contradicting forces on a circular loop under current in magnetic field?
I have the following general conceptual concern.
Think of a thin conducting loop of radius $R$ placed in the $x$-$y$-plane at $z=0$. There is a homogeneous current density $\vec{j}$ running through ...
CommunityBot
- 1
6
votes
3
answers
309
views
Would a solenoid move if a magnet went through it?
If you were to have a solenoid (0 current) floating still in space, and shot a magnet through it, would the solenoid move, or would it only create a DC current (what if it has a closed/open circuit)? ...
rob♦
- 91.5k
0
votes
0
answers
34
views
Why doesn't a conducting wire in a constant magnetic field experience a force in the direction of the magnetic field?
Instead of using the wire's magnetic field for deriving using Newton's third law can't we do the opposite using the magnetic field produced by magnet ?
I mean why doesn't the wire simply move in the ...
1
vote
1
answer
93
views
Vectors in Force experienced by a current carrying wire? [closed]
My textbook lays out the following explanation of Force experienced by a current-carrying wire:
My question is where did the negative sign of the charge on electron go? How did Drift velocity go from ...
- 4,577