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Why emf is not induced if a metallic loop is placed in a nonuniform magnetic field?
Wiki User
∙ 10y ago
emf is only induced if the flux through the loop varies with time.
if u keep it in a nonuniform magnetic field, the flux wont be uniform throughout the area of the loop, but whatever it will be , it will remain the same.. as at a point in the field, the field strength is same. means the magnetic field is not same at all points but if u consider a single point, there, it remains the same, its not changing. hence no emf is induced. hope u got it.
Wiki User
∙ 10y ago
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When alkynyl molecules are placed in NMR instrument the induced magnetic field of molecules are in Diamagnetic region of external magnetic field. There fore the resultant energy will be low
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The force experienced by a current carrying conductor placed in a magnetic field is strongest when that conductor is placed perpendicularly to the magnetic field.
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Hydrogen hasn't metallic properties.
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electricity is induced
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to avoid sparking ,since their is no e.m.f induced in magnetic neutral axis.
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A magnetic field induces an electric current. Hence, by placing the iron bar close to the magnet, a current is induced; and so we are, in effect, creating an electromagnet.
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A loop of wire is placed within a magnetic field If the loop of wire is stationary as is the magnetic field will a current be induced in the wire?
No it will not. In order to get electrical activity you need motion. Either the magnet or the wire must move.
What is Shielding n deshielding effect in nmr?
Type your answer here... Any molecule is placed in a magnetic field,the electrons rotate around the nucleus and forms the induced field (or) secondary field that induced field is apposed to the applaid magnetic field ,so the protons are protected i.e called shielding effect
What is definition of paramagnetic and dimagnetic materials?
A dimagnetic material produces a magnetic field that opposes an external field. A paramagnetic materia, on the other hand, produces a magnetic field that increases an external field. Dimagnetism and paramagnetism are induced when an object is placed in a magnetic field.
In NMR the value of alkynyl proton is less than the value os alkenyl proton?
When alkynyl molecules are placed in NMR instrument the induced magnetic field of molecules are in Diamagnetic region of external magnetic field. There fore the resultant energy will be low
Why is current produced in a coil if it is placed near other coil containg electricity?
When the current in a nearby coil changes, the magnetic flux associated with it changes and an induced emf is produced in the other coil.Hence, induced current is produced.
What is Gilbert experiment?
There are several experiments known as Gilbert's Experiment, but the most common is in induced magnetism. This showed that an piece of iron became temporarily magnetic when placed on a magnet. This is why sprinkled iron on a paper over a bar magnet seems (but actually does not) show magnetic lines of force. Instead the iron particles just obey Gilbert's Law of Induced Magnetism.
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one condition for the above question is either conductor or magnetic field must be rotating.considering rotating field and stationary conductor,the magnetic flux will be cut up by conductor resulting in the induced emf in the conductor.
