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Topic :: Magnetic Field
what is rotatng magnetic field in case of three or multiple phase alternating current machines???
NHPC,
1 3953What is the diameter of electromagnetic field around a 11000/415v transformer ? Dose it affect people who live 3-4 meter beside it?
2132how the rotating magnetic fieldis produced in induction machines??? give the correct explanation.is there any mathematical expression for the same?
1 3084how does a current carrying conductor posess a magnetic field. what is the reason for the production of electro magnetic field around the conductor
2 7801Relation between magnetic field strenght and magnetic induction is a) Voltage b) current c) Speed d) tarque
Ecil,
1 4440Why does increasing the magnetic flux in the main field of a d.c motor cause the armature current to reduce??
2045
how can we say that stator magnetic field rotates with synchronous speed?can we derive?
What is rotating magnetic field?Discuss elaborately.
earth also having a gravitational force (magnetic field of north and south)but it attracts any object compare to this theartifical magnetic cant perform same as earth why?
What is the magnetic field (coil DC ) of Turbo Expander?
why electron produce magnetic field when it is in motion?
what is the affect of earth's magnetic field on the frequency used in aircraft???
what is diff btw electric,magnetic & eletromagnetic field
During regenerative breaking= A rotating magnetic field is reversed B slip is positive C torque is positive D slip is negative
In which of the following case, the rotating magnetic field is reversed? A regenerative breaking B plugging C dynamic breaking D forward motoring
when ac current flows thru d coil of a contactr,it energizes,magnetic field attracts d contact of the coil...nw wont dt ac current in d contct induce current back on to d coil thru mutual inductance leading to high currnt in d coil
When the relative speed between the magnetic fields of stator and rotor does is zero under steady state operation?
What is force on a conductor in a magnetic field ?
Differentiate between magnetic field and magnetic flux?
A coil of wire that produces a magnetic field is typically called a
These doughnut shaped zones of atomic particles consists of electrons and protons captured by the earths magnetic field from the solar winds and are called?
