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Effect on the magnetic field when the direction of current is reversed true or false?
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How electric current have magnetic effect?
The magnetic force acts only on moving electric charges; A constant electric current produces an unchanging magnetic field and a changing electric current produces a changing magnetic field.
What are the three effects of electric current?
Death, injury, and electricutionIf we ignore the above, humourous(!), attempt at an answer, then the three effects of an electric current are (1) heating effect, (2) chemical effect, and (3) magnetic effect.Examples of the heating effect include electric heaters, kettles, stoves, etc. An examples of the chemical effect is electroplating. Examples of the magnetic effect includes relays, motors, etc.The SI unit of current, the ampere, is defined in terms of the force between two parallel conductors due to their magnetic fields (i.e. the magnetic effect).
What is the effect of variable area to the magnetic flux within the solenoid at constant number of windings and current?
area is equal to the magnetic flux, therefore it is equal.
What does a inductor do in a circuit?
DC current has no effect on the inductor(can be considered as a short circuit) as the current does not change in a DC supply voltage this one just produces a magnetic field which remains constant , as the magnetic field is not varying no emf is induced in the circuit , so literally it has no effect on the circuit when the supply is of DC voltage.when an alternating current is set up in a circuit , the Alternating current brings a magnetic field in the inductor which is variable (since the current is varying...) this variable magnetic field induces an emf in the circuit (back emf) which opposes the cause that is producing the change (lenz's law)explanation consider a circuit with an inductor connected to an AC voltageduring the positive half cycle when the voltage increases the current also increases in the circuit [take the current direction as clockwise] this causes a variable increasing magnetic field in the inductor , this magnetic field in turn induces current in the circuit which is opposing the increase in the current flow from the original source, the inverse happen during the decreasing half of the half of the positive cycle , here the induced current adds up with the decreasing current opposing the cause that produced this back current (cause :- decrease in current changes the magnetic field so the induced current is produced ..... it is opposing the change because :- the induced current either decreases the increasing current or increases the decreasing current )
A magnetic pole is the part of a magnet where the magnetic effect is weakest?
A magnetic pole is where the magnetic effect is greatest.
When the Earth's polarity is reversed is the Coriolis effect also reversed?
No. The reversal of polarity is a reversal of Earth's magnetic poles. The Corilolis effect is a direct consequence of Earth's rotation and is not affected by the magnetic field.
What is the motor effect?
When the current passes at right angles through a magnetic field, it experiences a force. The direction of the force is determined by Flemmings "Left Hand Motor Rule" This mechanical motion results from the interaction of the magnetic field which is known as the Motor Effect.
What do you mean by magnetic affect of electric?
The magnetic effect of electric current is known as electromagnetic effect. It is observed that when a compass is brought near a current carrying conductor the needle of compass gets deflected because of flow of electricity. This shows that electric current produces a magnetic effect.
What do you mean by heating and magnetic effect of electric current?
When electric current travels through a conductor, there is always resistance. This resistance causes some of the energy of the current to express as heat. Additionally, the movement of the current causes a magnetic field to form around the current in a clockwise direction. This principle is what allows coil heaters and induction motors to operate.
How electric current have magnetic effect?
The magnetic force acts only on moving electric charges; A constant electric current produces an unchanging magnetic field and a changing electric current produces a changing magnetic field.
What are the 4 effects of force?
there are not 4 but 3 effects of electric current - heating effect, magnetic effect and chemical effect of electric current
When both current wires are place in opposite direction to each other at the angle of 180what will be effect to each other?
This configuration is often used when a non-magnetic winding is needed. The magnetic field of the one wire will be cancelled out by that from the other.
If a wire had a current which was continually reversing directions and hten was placed between the poles of a magnet what would happen to the force on the wire?
Draw an imaginary line between the poles of a horseshoe magnet, say horizontal. If the wire is along that line there will be no magnetic force on it because the current would be parallel /antiparallel to the magnetic field. If the wire is perpendicular to the line, say vertical, the magnetic force on the wire will be in then out. If the wire is perpendicular ,say in/out, then the magnetic force will be vertical up then down. That's what the magnetic force would be, It changes direction when the current changes direction. To actually see the effect however could be difficult because; the wire has to be part of a circuit which could cause problems giving it enough "freedom" to move. If you use household current, which changes direction every 1/120 th of a second, the wire will not have time to move very far before the force changes directions and its doubtful you will be able to see the motion. Finally even if the current changed more slowly you still need a pretty strong current (a few amps) and a pretty strong magnet to see the effect.
How does phone holsters with magnetic closures not effect the phone?
it magnetizes in a different direction
What is magnetic arc blow?
Most stick welding SMAW is done with Direct Current DC. As this current passes thru the base metal it can set up a circular current on either side of the weld area creating a magnetic effect. The arc is affected by this and whips back and forth drawn by this magnetic field. Metal is blown out of the arc and splatters onto the sides of the weld and the arc is hard to control. This arc blow can be reduced by passing a separate magnetic field thru the metal nullifying the effect, or by welding in the opposite direction, or by using Alternating Current AC
What is an electrical properties?
If you are asking, 'What are the properties of an electric current?', then there arethree. They are (1) the magnetic effect, (2) the heating effect, and (3) thechemical effect. The unit of measurement of current, the ampere, is defined interms of the current's magnetic effect.If that's not your question, then this answer won't help you.WebRepcurrentVotenoRatingnoWeight
History of magnetic effect of electric current?
i dont care i LOVE it
