0
One of the differences between electric and magnetic fields is that magnetic field lines always form closed loops?
Wiki User
∙ 8y ago
Verified answer
One of the differences between electric and magnetic fields is that magnetic field lines always form closed loops.
true
Wiki User
∙ 8y ago
La'rena Palmer
La'rena Palmer
Yerelin Castillo
Wiki User
∙ 13y agoYes it is true
Anonymous
Wiki User
∙ 8y agotrue
isabejasmin
false/apex
explanation:
electric fields are produced by two kinds of charges, positive and negative. magnetic fields are associated with two magnetic poles, north and south, although they are also produced by moving charges. like poles repel and unlike poles attract.
electric lines of force due to two positive charges start from either charge and end at infinity. in all cases we see that electric lines of force , either from infinity or from a positive charge never come back to the same point, because the field lines starts (or diverges) from the positive charge and terminate (or converges) on negative charge. if the electric field lines form closed loop, these line must originate and terminate on the same charge which is not possible because electric field lines always moves from positive to negative and hence they don't form closed loops.
Wiki User
∙ 14y agoThe electric flux lines are starts at positive charge and ends at negative charge. And also that is always diverging one. It will not travel to positive charge from negative charge. So it will not form the closed loop.
Wiki User
∙ 9y agoThe electric field can form closed loops in an electromagnetic wave and inside a waveguide. So there is nothing that says closed loops are never formed. But also, electric field lines can start and end on free electric charges.
Magnetic field lines always form closed loops. This is described by one of Maxwell's equations that encapsulate electrical physics.
Wiki User
∙ 11y agogenerally, yes
Magnetism is one of the strongest forces in nature. It takes a lot of energy to break a magnetic field line.
Solar flares are the result of magnetic field lines near the surface of the sun breaking. Tremendous amounts of energy are released when that happens. Solar flares have been responsible for widespread blackouts on earth and major interruptions in the operation of man-made satellites orbiting the earth. In fact, NASA will often temporarily shut down a satellite that might be in the path of a solar flare eruption rather than take the chance that the flare will cause the satellite to behave erratically or even cause the destruction of the satellite's electronics.
Wiki User
∙ 14y agofalse
NOM j.a.r5798
True ✅
Anonymous
It’s false
Apex
Whats meant by radial magnetic field?
A radial magnetic field ensures that the plane of the coil (rotating within the magnetic field, in say a DC motor) is always flat within the external magnetic field ensuring maximum torque in (nearly) all positions. Hope this helps!
What does a commutater in an electric motor do?
It (1) provides a means of connecting a rotating coil to the external circuit, and (2) it is a rotating switch which ensures that the direction of the current through the coil always acts in the same direction relative to the magnetic field in order to ensure its torque acts in the same direction.
Does the induced emf always act to decrease magnetic flux through circuit?
Yes. It is based on Lenz law of Electromagnetic induction.
Choose the best description of a magnetic field line AMagnetic field lines always point north BA magnetic field line shows the direction a compass needle would point CMagnetic field lines?
From that list, I'll have to go with 'B'.
How do lines magnetic force travel?
from the magnet`s neutal lines to its poles. This is not correct. The path Magnetic Force Travels is always from it's North Pole around the Magnet to it's South Pole with completes the Magnetic Circuit. Then back through the magnet through the neuatral line back to its North Pole and starts again.
What is the classical explanation of a dc electric current in a metallic wave?
A changing magnetic field always produces an electric field, and conversely, a changing electric field always produces a magnetic field. This interaction of electric and magnetic forces gives rise to a condition in space known as an electromagnetic field.
What is the force of attaraction between two objects in a vacuum?
The force will always be gravitational. In addition we might have magnetic force, and electric force.?Regards.
Is The electric part of the electromagnetic wave always 90 degrees from the magnetic part?
yes, always.
Is an electromagnet always magnetic?
No. Only when an electric charge is put through the electromagnet.
Can an electric current produce a field magnetism around it?
yes. electric current low always generates a magnetic field.
Can a electric current runnng along a wire be used to produce a magnetic force?
Whether or not you use it, there's always a magnetic field surrounding an electric current.When anything that can respond to a magnetic force is brought close enough to the current,it does feel a magnetic force.
Are electric currents magnetic?
A magnetic field is always associated with a moving charge. So, if current is there, it must be showing the magnetic effects though these are too small of daily relevance..
Moving electric charges will interact with?
Moving electric charges will interact with an electric field. Moving electric charges will also interact with a magnetic field.
How are magnet fields and electric fields alike?
Both act only on charged particles (ions, protons, or electrons). ?However, an electric field (which generates an ELECTRIC FORCE) acts on a particle in the same direction as the field, given by the equation:F(vector) = q*E(vector)The resulting force vector is in the same direction as the field vector (for positive charges).A magnetic field generates a force ONLY on a MOVING charge, and ONLY if the charge is moving non-parallel to the magnetic field:F(vector) = q*v(vector) x B(vector)Because of the cross-product, the magnetic force is a direction perpendicular to the velocity and magnetic field vectors (use the right hand rule to figure out the direction of magnetic force). ?The particle will still have momentum from its initial velocity, so an applied magnetic field will (pretty much) always make the particle move in a curved path.
Do electric and magnetic fields always form closed loops?
Magnetic fields do, because there's no such thing as an isolated magnetic "pole", and a magnetic line always starts and ends at opposite poles of the same magnetized object. But electric fields don't. You can easily have a bundle of isolated positive charge over here and a bundle of isolated negative charge over there, whereupon the lines of the electric field start on one bundle and end on the other bundle. But electric field lines can also exist in closed loops, and they do that in radio waves, where the electromagnetic field propagates with an electric field component and a magnetic field component, and they both form closed loops.
How do the electric and magnetic field of an electromagnetic wave regenerate each other?
No. Current flow creates electromagnetic fields in space. Electromagnetic fields, in turn, can create current flow in conductors. The electric fields do not directly create magnetic fields, nor do magnetic fields directly create electric fields.
What is the different electromagnets and permanent magnet?
Electromagnets are non permanent magnets. They got magnetic field because of applied electric field. They lost their magnetic field which was around that, when the applied electric field is stopped. permanent magnets have magnetic property always with it. Permanent magnetic property loses when we heat the material. It cannot be regained once again. But electromagnets are capable of regaining its magnetic properties.
