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What are 2 ex. of how electricity and magnetism are interrelated?
First of all, the concepts of both magnetism andelectricity involve fields. An electric field is caused by a point source charge (which is + or - in charge) and is characterized by field lines emanating from the point source charge. Magnetic fields are similar, but are actually caused by charges in motion. Another instance of the interrelatedness between the two phenomena is that the magnetic field is perpendicular to the electric field. Finally, electric fields can cause a current to flow through a wire. As a result of the flow of current, A potential difference is created (voltage) and a magnetic field is formed encircling the length of the wire. The direction of the magnetic field (clockwise or counterclockwise) depends on the direction of current flow.
What most occur to produce electric current?
Chemical changes, change in magnetic flux linked with a conductor cause the production of electric current.
Does the magnetic field increase or decrease if the current is decreased?
An increase in an electrical current will cause magnetism to increase but a decrease in an electrical current will cause magnetism to decrease.
What is applied to a conductor to cause current flow?
voltage is applied to a conductor to cause a current flow
A wire cannot cause a magnetic field if what?
A wire cannot cause a magnetic field if there is no current flowing through it. Magnetic fields are generated by the flow of electric current in a conductor.
Enlist any four effects of electric current on conductor with one example of each?
Effects of an Electric current -1) Heating effect -e.g. - Heater / Geyser etc.2) Magnetic effect -e.g. - Electric Bell etc.3) Chemical effect -e.g. - Battery charging etc.4) Lighting effect -e.g. - Electric bulb etc.
What is the cause of an electric current?
An electric current is caused by the flow of charged particles, typically electrons, through a conductor such as a wire. The movement of these charged particles creates a flow of electricity that can be harnessed for various applications.
How was current produce or induced?
Current can be induced in a conductor through electromagnetic induction, where a changing magnetic field causes a flow of electric current. This can be achieved by moving a magnet near a conductor or by varying the current in one nearby. Alternatively, current can be produced by a voltage source such as a battery or generator that creates a potential difference to drive the flow of electrons.
Which would cause most of the free electrons to move in a conductor to move in the same direction?
The presence of an electric field would cause most of the free electrons to move in the same direction within a conductor. The electric field exerts a force on the electrons, causing them to move in the direction of the field. This movement of electrons is what constitutes an electric current.
How does electricity cause magnetism?
Changing the amount of magnetic field (known as "flux") through a conductor exerts a force on charged particles (electrons in the wire). A change in magnetic field strength in a region of space induces an electric field which circles the magnetic field lines, surprisingly whether or not there is a conductor there or not. It turns out that magnetism and electricity are inherently linked, they are kind of manifestations of the same thing. If "something" has the property of electric charge, it creates an electric field. If that something moves, it creates a magnetic field.
In electric bell electric energy is converted into?
An electric doorbell uses electrical current thru a coil to move a metal bar using magnetism and cause it to strike a metal plate making a ring sound
Is electric current and current the same thing?
Not really. You can compare them with the analogy of water flowing through a pipe. For water to flow, there must be a pressure difference across the ends of the pipe. An electric current is a movement of electric charges along a conductor. For those charges to move, there must be a voltage (more accurately, a 'potential difference') across the ends of the conductor. So a potential difference is required to cause current to flow.
