Find position, magnitude, and direction

AI Thread Summary
To solve the problem of finding the position, magnitude, and direction of the current in wire 3, it is essential to understand the magnetic fields produced by the currents in wires 1 and 2. Wire 1, carrying an upward current of 1.5 A, generates a magnetic field that affects wire 2, which has a downward current of 4 A. The goal is to position wire 3 such that the net magnetic force on all three wires is zero, requiring careful calculation of the magnetic fields and forces involved. The magnetic field at a distance 'r' from an infinitely long wire can be determined using the appropriate equations, which are crucial for finding the required parameters for wire 3. Ultimately, the solution will involve balancing the magnetic forces to achieve equilibrium among the wires.
wayneinsane
Messages
15
Reaction score
0

Homework Statement



Three long wires( 1,2 and 3) are coplanar and hang vertically. The distance between wire 1 and 2 is 20 cm. On the left wire 1 carries an upward current of 1.5 A. To the right the wire 2 carries a downward current of 4 A. Wire 3 is located such that, when it carries certain current such that no net magnetic force acts upon any of the wires. Find the position of wire 3 and the magnitude and direction of the current in 3.


Homework Equations



Ummm...?


The Attempt at a Solution




I'm drawing a blank...This question confuses me.
 
Physics news on Phys.org
What is the magnetic field at a distance 'r' produced by an infinitely long wire with current 'I'?
 

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

Direction and magnitude of electric field produced by current change
Replies
8
Views
986
Multiple choice Q: Mangetic fields and Spring Constant
Replies
8
Views
2K
Magnetic Forces on infinite current-carrying wires
Replies
9
Views
2K
Vector is a function of its position or not?
Replies
16
Views
1K
Confused about direction of electric field
Replies
7
Views
3K
Finding the Magnitude and Direction of Magnetic Field of 2 parallel wi
Replies
1
Views
4K
Illustrating the Direction of a Current in a Magnetic Field
Replies
9
Views
3K
The direction of induced current and magnetic field produced
Replies
12
Views
3K
Finding the magnitude (length) and direction (angle) of a vector
Replies
2
Views
1K
Forces of a straight wire on a semi-circular wire loop (Magnetism)
Replies
17
Views
3K

Hot Threads

Recent Insights

Back
Top