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What else can I help you with?
What happen in coil of wire when you pass a magnet through it?
A current would be induced in the coil.
What must happen for an electromagnet to have a magnetic field?
An electromagnet must have a current flowing through its coil of wire in order to generate a magnetic field. When an electric current passes through the coil, it creates a magnetic field around the electromagnet.
What will happen if you pass ac current passes through a inductor?
magnetic flux will be induced its use to rotate the shaft or given some force
What will happen to the current if the magnet and coil were not moving?
If the magnet and coil are not moving relative to each other, there will be no induced current in the coil. The movement of the magnetic field relative to the coil is required to induce an electromotive force and generate current through electromagnetic induction.
Why is it in lifting a metal bucket using crane there is a electrical current exist?
For this to happen, presumably the bucket, or some surrounding object, has some magnetism. If you move a magnet through an electric field, a current will be induced.
Where does electricity happens?
Electricity does not 'happen' it is induced by a potential difference of electrons. But materials in which electrons may drift, and hence an electrical current can flow, must have delocalised electrons.
What must happen for an electromagnet to have a magnetc field?
An electromagnet must have an electric current passing through its coils to generate a magnetic field. The magnetic field is created as the electric current causes the alignment of the magnetic domains within the core material of the electromagnet, creating a magnetic field around the coil.
If you stopped the magnet midway through the loop what would happen?
The magnetic field generated by the magnet would also stop, causing the induced current in the loop to cease. This would result in a decrease in electromagnetic induction and the loop would have no current running through it.
What do inductors 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 )
What will happen when the current flows around the electromagnet in the bell?
the magnet is start picking things up
What will happen when armature cuts a magnetic line of force?
When an armature cuts through a magnetic line of force, it induces an electromotive force (EMF) due to electromagnetic induction, as described by Faraday's law. This induced EMF generates an electric current if the circuit is closed. The direction of the induced current can be determined using Lenz's law, which states that it will flow in a direction that opposes the change causing it. This principle is fundamental to the operation of electric generators and motors.
What happen when a negatively charged item gets near a neutral item?
The neutral object will probably get an induced polarity.
