If you use superconducting wire, you can create an extremely powerful superconducting magnet that can be used in magnetic levitation (maglev) trains. A charged particle is deflected from it's forward motion when a magnetic field is turned on. Note that the deflection only occurs when the particle is not traveling parallel to the magnetic field lines. The big, old styled TV’s use this to shoot electrons at the screen to make the picture.
The Earth’s magnetic field deflects the charged particles ejected by the Sun, protecting the planet. Just like charged particles are deflected when they run into a magnetic field, charges running through a wire will create a magnetic field that will interact with external magnets to cause the wire to move. The force on the wire is perpendicular both to the direction of the current and the lines of the magnetic field.
If you reverse the current in the wire (send it the other way) the force will be in the opposite direction.
You can use this principle to create a galvanometer, which is a device that detects electric currents, or to build motors.
As lava cools, the magnetic minerals in it orient themselves with the Earth’s magnetic field. Montessori Muddle by Montessori Muddle is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.
An electric current on a long straight wire produces a magnetic field whose field lines are made up of circles with center on the wire.


The direction of the magnetic field B may be determined by the right hand rule (right in the figure below): imagine grasping the wire using the RIGHT hand with the thumb in the direction of the current. An electric current through a circular loop creates a magnetic field such that the line field are circles around the loop as shown in the figure below. In order to produce a stronger magnetic field using electric currents, several loops are grouped together to form what is called a solenoid. Magnetic Force Acting on a Current-Carrying Conductor (a) Magnetic field lines coming out of the paper are indicated by dots, representing the tips of arrows coming outward.
Magnetic Data Storage (1) Magnetic recording (a) General (longitudinal recording) (b) Thermal stability (c) Advantage Media Oriented longitudinal media Anti-ferromagnetic coupling media Perpendicula.. The Role of Electric Cars in a Sustainable Way of Life   Global Financial Turmoil: What is Going On?
So if a moving charged particle encounters a magnetic field the two magnetic fields will interact and the motion of the particle will be deflected. One way of telling how old basalt rocks on the seafloor are is by looking at the direction of their magnetic field. This magnetic field may be detected by placing a magnetic compass close to the wire as shown in the figure below. The direction of the magnetic field is in the same direction along which the four fingers curl. A solenoid not only produce a strong magnetic field but also a uniform one with a north and a south pole similar to magnets. GANESHKHIND PUNE-7 1) Magnetic field and Field lines a) Magnetic field The region around a magnet where the force..


Compare with DC in which the current direction stays the same with respect to time, the magnitude of the current may change. End of Cycle Low Temperature Collection Systems Mid Temperature Flat Plate Collectors High Temperature Evacuated Tube Solar Collector Efficiencies Existing Technology Why have pumped storage? Since the Africa and the Americas are moving apart, slowly over millions of years, there is a suture in the Earth’s crust in the middle of the Atlantic ocean where new seafloor is made from erupting, under-sea volcanos. Disruptions of the mid- and low-latitude ionosphere seem to be the most important aspects of space.. Since the magnetic field of the beam is severely attenuated outside a continuous conducting vacuum ..
Probably the most familiar form of electric c - The concept of torque in physics, also called moment or couple, originated with the work of Archimedes on levers.
As a result, there are magnetic stripes all along the Atlantic Ocean (and all the other oceans too) that have recorded each time the Earth’s magnetic polarity has reversed. The magnetic filed produced by solenoids may be controlled by controlling the current in the solenoid.
The current in the solenoid may be switched on or off and also by increasing or decreasing the electric current in the solenoid, we can control the intensity of the magnetic field produced.



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