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When the magnet is moved away from the object magnetic force on the object will?
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How does force exerted by two magnets change as the magnets are moved farther apart?
When distance between two magnets decrease, the less magnet force the magnet has.
How is a moving magnet used to create electricity?
makes current flow through a magnet
How do magnets work?
Magnets have magnetic fields that attract items containing iron. Some of the substances attracted to magnets include iron, nickel, and steel. To understand a magnet you must first understand the magnetic field. A magnetic field is created as the result of moving charges such as electrons. A magnet's magnetic field either attracts or repels certain metals, as well as other magnets. A magnet has two ends that are referred to as poles. One pole is called north and the other one is referred to as south. To attract magnets to each other, you have to place opposite ends of two magnets near each other. Placing like ends of two magnets near each other causes the opposite to occur; the two magnets repel each other. A magnet is any object that has a magnetic field. It attracts ferrous objects like pieces of iron, steel, nickel and cobalt. In the early days, the Greeks observed that the naturally occurring 'lodestone' attracted iron pieces. From that day onwards began the journey into the discovery of magnets. These days magnets are made artificially in various shapes and sizes depending on their use. One of the most common magnets - the bar magnet - is a long, rectangular bar of uniform cross-section that attracts pieces of ferrous objects. The magnetic compass needle is also commonly used. The compass needle is a tiny magnet which is free to move horizontally on a pivot. One end of the compass needle points in the North direction and the other end points in the South direction. The end of a freely pivoted magnet will always point in the North-South direction. The end that points in the North is called the North Pole of the magnet and the end that points South is called the South Pole of the magnet. It has been proven by experiments that like magnetic poles repel each other whereas unlike poles attract each other. What is a magnetic field? The space surrounding a magnet, in which magnetic force is exerted, is called a magnetic field. If a bar magnet is placed in such a field, it will experience magnetic forces. However, the field will continue to exist even if the magnet is removed. The direction of magnetic field at a point is the direction of the resultant force acting on a hypothetical North Pole placed at that point. When current flows in a wire, a magnetic field is created around the wire. From this it has been inferred that magnetic fields are produced by the motion of electrical charges. A magnetic field of a bar magnet thus results from the motion of negatively charged electrons in the magnet. Just as an electric field is described by drawing the electric lines of force, in the same way, a magnetic field is described by drawing the magnetic lines of force. When a small north magnetic pole is placed in the magnetic field created by a magnet, it will experience a force. And if the North Pole is free, it will move under the influence of magnetic field. The path traced by a North magnetic pole free to move under the influence of a magnetic field is called a magnetic line of force. In other words, the magnetic lines of force are the lines drawn in a magnetic field along which a north magnetic pole would move. The direction of a magnetic line of force at any point gives the direction of the magnetic force on a north pole placed at that point. Since the direction of magnetic line of force is the direction of force on a North Pole, so the magnetic lines of force always begin on the N-pole of a magnet and end on the S-pole of the magnet. A small magnetic compass when moved along a line of force always sets itself along the line tangential to it. So, a line drawn from the South Pole of the compass to its North Pole indicates the direction of the magnetic field. # The magnetic lines of force originate from the North Pole of a magnet and end at its South Pole. # The magnetic lines of force come closer to one another near the poles of a magnet but they are widely separated at other places. # The magnetic lines of force do not intersect (or cross) one another. # When a magnetic compass is placed at different points on a magnetic line of force, it aligns itself along the tangent to the line of force at that point. These are just some of the basic concepts of magnetism. One cannot possibly grasp the depth and appreciate the versatility of magnets without reading more about the uses of magnets, the Earth as a huge magnet and electromagnetism among other things.
How can a magnet be used to create an electric current?
An electrical current will flow in a conductor, when a magnet is moved next to a conductor - or when the conductor is moved next to the magnet.
What happens when a wire is looped into a coil?
When you wind a current carrying wire into a coil, it causes the concentration of the magnetic field line to intensify. Depending on which pole of the magnet is in the up position, the wire will move towards or bend away from it.
Which object cannot be moved by magnet?
Any object that is nuetral that does not have magnetic pole's
Which object cannot be moved by a magnet?
Any object that is nuetral that does not have magnetic pole's
What happens when a magnet is moved towards a coil?
You will generate electricity. As the wire cuts through the magnetic field.As the magnet is moved, there will be an induced electro-motive force (EMF) which can cause a current in the coil. Once the magnet stops moving, the current will go to zero.
What distinguishes a permanent magnet from a temporary magnet?
Permanent magnets do not lose their magnetic ability. Temporary magnets, however, gain magnetic properties when they are touched or moved by a permanent magnet. The properties of a temporary magnet dissipates over time after the permanent magnet is removed.
Force is applied to an object and the object is moved over a distance in the same direction of the applied force is the definition of?
Work is applied to an object and the object is moved over a distance in the same direction of the applied force.
Work is done when a force is applied to an object if the object .?
is moved
In what directions can an object move when acted on by a force?
it will move the object that the force i pushing it to Example: Force---->Object------> the object is moved in the direction it is being pushed or pulled by the force
Why are the poles of a bar magnet not situated at the extreme ends of the magnet?
The poles are situated at the ends of the bar magnet. The magnetic lines of force run through the magnet, emerge from one end, fold back around the length of the bar of the magnet, and curl back into the other end. The ends are the magnetic poles, and the magnetic lines of force emerge from one and re-enter the magnet at the other. You can see these lines by laying flat a piece of smooth paper over the magnet and sprinkling iron filings over the paper. Because they are light they will be easily moved into alignment by the magnetic field and will visually show the fields arrangement. (Using a piece of paper makes it easy to tidy up. Without it, the filings will stick to the magnet and be difficult to remove.)
When a magnet is moved through a coil of wire an electric current is generated in the coil because?
the magnetic field affecting the wire changes as the magnet moves.
What is the product of the force on an object and the distance through which the object is moved?
work
Work is done when a force is applied to an object if the object?
is moved
Why does moving the magnetic field past the wire induce a voltage?
A good question. When an electron is moved, it will generate a magnetic force. In a permanent magnet, there are a 'magnetic domains' in which a number of electrons have similar spin direction. In an electromagnet, there are, by definition, a number of electrons moving in the same direction. If you do not have a moving electron, you do not have a magnetic field! From this statement, you may deduce that the amazing magnetic loops on the Sun, are generated by currents flowing inside the Sun.
