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What are the two methods of producing magnetic field Which of these is better and why?
Wiki User
∙ 10y ago
1)use a permanent magnet
2)use an electromagnet
3)a current carying coil may also work
4)charge induced magnetic field
2nd one is better because it never lose magnetism and is powerful...
Wiki User
∙ 10y ago
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What is a region where a magnetic force can be detected?
The magnetic field. If it's an electromagnet, the electromagnetic field.
Does Ceres have a magnetic field?
No, Ceres does not have a magnetic field around it.
What is the magnetic field of a black hole?
A black hole has no magnetic field.
Do magnetic field lines close together indicate a weaker magnetic field?
no they are not
DO charged particles have a magnetic field?
if charge particle is in motion ,then it has magnetic field
Why the primary coil and the secondary coil of a physical transformer wrapped on each other?
Close approximation of the primary and secondary coils makes for an efficient transformer. It is the rise and fall of the magnetic field that surrounds the wire in the primary that induces a current to flow in the secondary. The closer the wire producing the magnetic field is to the conductor being cut by the magnetic field (induction) the better the secondary output.
What are the methods of producing emf?
Presently, there are six known methods for producing a voltage or electromotive force (emf). Some of these methods are more widely used than others, and some are used mostly for specific applications. Following is a list of the six known methods of producing a voltage. 1. FRICTION - Voltage produced by rubbing certain materials together. 2. PRESSURE (piezoelectricity) - Voltage produced by squeezing crystals of certain substances. 3. HEAT (thermoelectricity) - Voltage produced by heating the joint (junction) where two unlike metals are joined. 4. LIGHT (photoelectricity) - Voltage produced by light striking photosensitive (light sensitive) substances. 5. CHEMICAL ACTION - Voltage produced by chemical reaction in a battery cell. 6. MAGNETISM - Voltage produced in a conductor when the conductor moves through a magnetic field, or a magnetic field moves through the conductor in such a manner as to cut the magnetic lines of force of the field.
Why is the field left energized during dynamic braking?
the field is left energized in order that the motor behave like a generator producing an magnetic field in the opposed direction of rotation
The area around an object that is affected by the magnetism of that object is the?
A Magnetic Force
How electric current causes magnetic field around conductor?
Electric current causes magnetic field around conductor by producing a moving electric charges and the intrinsic magnetic moments of an elementary particles that is associated with a fundamental quantum property.
Region around a magnet in which magnetic force can act?
Magnetic freild
What is the evidence that the outer core is liquid?
Geophysical methods support this idea mainly on the basis of seismological studies and earth's magnetic field. a) The S-waves vanish reaching the outer core which suggest that it is liquid because S waves are not supposed to pass fluids. b) The Geomagnetic field is also thought to be originating from outer core because In iron and nickle in molten form produces eddy currents producing magnetic field. This is proved by laboratory experiment. Molten metals were filled in a globe and globe was spinned which produces magnetic field around it.
What will happen if a cell that is treated as a kelvin body has a magnetic bead attached to it if a magnetic field has been turned on for a very long time and is producing a constant force on a bead?
The bead will get hot.
How ceiling fan convert electrical energy into mechanical energy?
The motor does it, by producing a rotating magnetic field, which twists the fan blades.
Does Eris have a magnetic field?
no. Eris does not have a magnetic field
What is a region where a magnetic force can be detected?
The magnetic field. If it's an electromagnet, the electromagnetic field.
State two methods of increaseing the strength of the magnetic field?
Add another magnet. If an electromagnet increase the windings and/or the power applied. Raise the voltage applied and you will raise the magnetic flux.
