0
Why does the changing magnetic flux in a conducting loop always induced a current that generates field opposing the change in flux?
Free electrons in the conducting carry a charge, and electrons are influenced by magnetic waves. Thus if a magnetic wave is generated by the changing field, electrons will feel the influence. Since the system is naturally stable it will resist changes, and thus it opposes the influence. The current flowing in the conductor will generate a field opposing the incoming field.
What else can I help you with?
How can the leakage flux be minimized in a dc motor?
An opposing magnetic field around the motor coil.
What is the direction of induced current in lenzs law?
According to Lenz's Law, the direction of the induced current is such that it opposes the change in magnetic flux that produced it. If the magnetic field through a loop is increasing, the induced current will flow in a direction that creates a magnetic field opposing that increase. Conversely, if the magnetic field is decreasing, the induced current will flow in a direction that attempts to maintain the original magnetic field. This principle ensures the conservation of energy in electromagnetic systems.
Why the generator field rheostat kept at maximum position?
There is nothing to limit current until opposing magnetic fields build up at generator operating speed-windings will overheat and burn.
Electric and magnetic fields move in what direction of each other and the direction of the wave?
Electrical and magnetic fields have liquid properties and by this I mean they move in waves and are bound by the properties therein and the Laws of Nature that control liquid states. There are many types of liquid states continuing out into space. These are about densities and those densitiies fall away infinitely. In conclusion Electrical and Magnetic waves would most likely repel each other if their poles aren't opposing. Positive to positive or negative to negative. Phil staples
If you increase the number of turns in the coil and move a magnet at the same speed will the speed increase or decrease?
no the strength of the magnetic field does not decrease because of the number of coils increases.
Does induction motor has rotor winding?
Yes, the induction motor has a rotor winding. It is usually one turn, shorted. This is how the magnetic fields generated in the stator induce a current in the rotor, which subsequently generates a torque from the opposing magnetic fields, stator to rotor.
How do you reduce the strength of magnetic field?
To reduce the strength of a magnetic field, you can increase the distance between the magnet and the object affected by the field, use a material that can shield or redirect magnetic fields (like mu-metal), or use a magnetic field cancellation system that generates an opposing magnetic field to nullify the original field.
What are diamagnetic substance?
Diamagnetic substances are materials that have no unpaired electrons and are weakly repelled by magnetic fields. When placed in a magnetic field, the orbital motion of electrons in diamagnetic substances generates small, opposing magnetic fields that cause a weak repulsion. Examples of diamagnetic substances include water, gold, and copper.
What are the three methods of magnetization?
The three methods of magnetization are: ferromagnetism, paramagnetism, and diamagnetism. Ferromagnetism occurs in materials like iron and nickel, where the magnetic moments of atoms align spontaneously. Paramagnetism arises in materials with unpaired electrons that are attracted to an external magnetic field. Diamagnetism is a weaker form of magnetism exhibited by all materials, where electron motion generates a weak opposing magnetic field.
What is field effect?
Fringing effect is the magnetic characteristic caused by the shape around directly opposing the magnetic surfaces.
How do opposing magnetic fields interact with each other?
Opposing magnetic fields interact by repelling each other. When two magnetic fields are facing each other in opposite directions, they will push away from each other due to their like poles repelling. This phenomenon is known as magnetic repulsion.
Why are unpaired electrons able to give some atoms a magnetic field?
Unpaired electrons in an atom have a net magnetic moment due to their intrinsic property called spin, which generates a magnetic field. In atoms with unpaired electrons, the magnetic moments of these electrons do not cancel each other out, allowing the atom to exhibit a net magnetic field. This is in contrast to atoms where all electrons are paired, as their opposing spins negate each other's magnetic effects, resulting in no overall magnetism. Thus, the presence of unpaired electrons is crucial for the magnetic properties of certain materials.
How can you conduct debate?
By getting an opposing topic for the two groups and conducting it by the interest of everyone who is debating.
How can the leakage flux be minimized in a dc motor?
An opposing magnetic field around the motor coil.
How do opposing magnets interact with each other?
Opposing magnets interact by attracting each other. This is because opposite poles (north and south) of the magnets are attracted to each other due to their magnetic fields.
How you can stop or divert magnetic lines of force?
To stop or divert magnetic lines of force, you can use magnetic shields made of materials with high magnetic permeability such as iron or steel. These materials can redirect or absorb magnetic fields, preventing them from reaching a certain area. Alternatively, you can use electromagnetic coils to create opposing magnetic fields that cancel out or weaken the original magnetic field.
Is it possible for the opposing magnetic field to be strong enough to completely stop an object from falling?
No because the magnetic field induced attracts the falling magnet, creating a force which slows down the magnet. If the magnetic field increased to a certain point where the force acting on the magnet was enough to stop the magnet from falling, gravity would act on the bob, causing the magnet to speed up again until it reaches a happy medium speed (or even a terminal speed if you will). When this happens, a changing magnetic field occurs and an induced current is formed again. This cycle repeats.
