Pull force Definition and 17 Threads

i have a neobydium magnet of grade n40 , the diameter of magnet is 15mm and thickness is 10 mm , now i want to calculate the pull force between this magnet and a steel plate when there is no gap between them ; & in second case i want to calculate the pull force when i put a 0.15mm copper plate...

Hi guys, I am working on design where I am using a torsion spring to hold a certain load. How can I calculate if the spring I am designing is strong enough to hold the load and prevent it from slipping down? This is music wire 2mm diam spring, 90deg travel, 60mm legs. Please let me know if I...

In deciding which shape of ring I should use to secure an anchor to an anchor trolley I came across two choices, a circular ring or a triangular ring. While either will surely work, I began to wonder which would be more difficult to pull apart. Most of the information I found is about forces...

Hi, i have a question. I need to know how much Newton it takes to separate 2 magnets or a magnet from a from a piece of metal. I've bought a spring scale that measures max 50 gram, so very accurate. Now what if i attach the scale to the magnet and i pull it horizontally just enough to...

For an undergraduate project, I need a magnet with a magnetic dipole strength of 0.3 A*m^2. However, all distributors I can find only list their magnets in terms of "pull force" which appears to be defined as the force between a magnet and a steel plate. How do I find a magnet with the dipole I...

Hello! I'm posting this because I cannot find this type of question and analysis anywhere! What are the force and torque equations describing the following? 1. A thin metal wire is bent around the OD of a cylindrical tube (wall thickness, t) perpendicular to the axis. 2. The cylindrical tube is...

I am trying estimate the approximate value in gauss of the magnetic field of a magnet I have based on its pull force, and I am wondering if anyone can comment on the validity of my method. I have tested the pull force of my magnet by weighing the heaviest object it can hold. I have also found...

Hi, I am investigating the possibility of using 2 oppositely polarised electromagnetics to locate 2 moving bodies into the correct position as they move towards each other and would appreciate some thoughts on the feasibility of the solution and ways it might be improved. I am proposing using...

Homework Statement Hello, I am suppose to provide an equation to calculate the force that a disk magnet pulls a steel ball with respect to the distance between those two objects. My idea is to calculate the difference between the energy density with and without the ball and then calculate...

I'm trying to predict the possible pull force of some electromagnets from the following equation: FPull= ( n x I ) 2 μ0\frac{A}{(2 g ) ^ 2} F : Force. n : Number of turns. I : Current. μ0 : permeability of air. A: Area in m2 g : the gap that is separating the electromagnet and the object...

Coverting Amp to pull force?? I am trying to figure out a way to covert amps to pull force(lbs). I have a known amp that I would like to find out the pull force in lbs. I have 2.8 amp @ 120v and would like to know the pull force that is needed to turn this type of amperage.

Hallo all, I've been looking around to find the best way to calculate the magnetic field generated by current flowing through copper wire... There were many sites I've found but its kinda confusing One of the laws: I thought it was simple to determine the magnetic field... Is there...

Hello. I'm a cabinetmaker and my college physics courses are 25 years behind me now. I'd consider it a kindness if someone would answer a question for me regarding magnetism. I have a magnetic strip that is described as having 6.2 lb. of magnetic pull force per lineal foot, 1" wide and 0.020"...

Hi PF, A disclaimer, I am no good at Physics or math. My question: When calculating the pull force between two magnets it seems to always be calculated at an angle perpendicular to the surface of the magnet. I was wondering what effect on the force required to "pull" one magnet away...

Let's say a magnet is attached to an object that weigh's 15 pound's . Then someone attempt's to take the magnet off the object . The object then go's up with the magnet (still being attached to it ) Does that mean the magnet can lift 15 pound's ? Also when a magnet is rotateing through a coil...

Okay i am new to this site so i figured this would be the best place to post this. I need an equation for my project i am working on. I need an equation to find the speed of a object based off how much force is applied to it. If this isn't clear enough i am welcome to give more...

Hi, I have a permanent magnet (actually, an assembly of permanent magnets). I can calculate magnetic flux density induced by the magnets (when no other objects presents). Now, I have very small iron particles suspend in water inside a cup. The magnets are then placed on the outside wall...