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What device works by rotating a wire coil within a magnetic field to produce current?
inductor
A current in a long straight wire produces a magnetic field. These magnetic field lines?
The magnetic field lines are arranged circularly around the wire.
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 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 )
Does a lodestone create a magnetic field?
A lodestone is magnetized and thus produces a magnetic field around it. This can be detected by the deflection of a compass needle.
In which place an inductor store energy in it?
Because inductor forms a coil with magnetic field around it. It acts as a relay also. Tasleem
What is the purpose of inductor?
The fundamental purpose of an inductor is to store electrical energy in a magnetic field.
What is trapped energy of inductor?
An inductor resists a change in current. It does this by converting the current into a magnetic field. If the current then changes, the collapsing or increasing magnetic field will buck the attempted change through electromagnetic energy conversion.
How do power transformers work?
An inductor is a spirally wound coil that produces a magnetic field when the current passing through it is changed. The magnitude of the magnetic field depends upon the amount of change in the current per unit time, number of turns in the coil, and the material of the coil. Conversely, when magnetic field across an inductor is changed, it produces a current. When two inductors are placed close to each other and a current is passed through one of them, we can have an arrangement in which we apply a particular voltage across one conductor and get a different voltage across the second inductor. Such an arrangement is called a power transformer.
Does lightning produces magnetic field?
Yes, The movement of electrical charges produces a magnetic field
Which layer of the earth produces its magnetic field?
The earth's outer core produces the magnetic field.
Energy is stored in inductor in magnetic field.magnetic field exists only where the charge is moving.so does the moving charge is stored in an inductor.if not then how is energy stored in inductor?
the energy is stored in the magnetic field surrounding the inductor, which takes time to build up and time to collapse. when current is first applied, the absence of magnetic field opposes it until the field has built up. when current is removed, the built up magnetic field opposes it forcing current to flow until the field has collapsed.nothing happens instantly when dealing with fields, either magnetic or electrostatic.
What is an electrical current that produces a magnetic field?
The deflection of a magnetic compass in the presence of an electric current, is evidence that an electric current produces a magnetic field.
Is a circuit a path made for magnetic field?
A circuit is a path for charge particles -- it conducts current. An inductor, a circuit component, generates a magnetic field, when an AC is on. ======================
What is evidence that an electrical current produces a magnetic field?
The deflection of a magnetic compass in the presence of an electric current, is evidence that an electric current produces a magnetic field.
What device works by rotating a wire within a magnetic field to produce electric current?
inductor
What device works by rotating a wire coil within a magnetic field to produce current?
inductor
