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The magnetic field is the area around a magnetic body or a moving electric charge within which magnetic force acts. It can be generated by moving electric charges. The direction of the magnetic field is indicated by lines. At the same time, the electric fields are produced around the particles, which possess electric charges.
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- Electromagnetic Fields
Since magnetic forces act at a distance, we define a magnetic field to represent magnetic forces. A pictorial representation of magnetic field lines is very useful in visualizing the strength and direction of the magnetic field. The direction of magnetic field lines is defined to be the direction in which the north end of a compass needle points.
Magnetic fields are measured in milliGauss (mG). An electric field occurs wherever a voltage is present. Electric fields are created around appliances and wires wherever a voltage exists. You can think of electric voltage as the pressure of water in a garden hose – the higher the voltage, the stronger the electric field strength.
- Proportional to the electric charge
- Created around electric charge
- Perpendicular to the magnetic field
- Newton per coulomb, volts per meter
Mar 9, 2022 · A magnetic field is an invisible force field generated by a magnet (like bar magnet and horseshoe magnet), moving electric charge (like current-carrying wire, toroid, and solenoid), spinning electrons, and changing electric field. The force due to a magnetic field is called magnetic force. This force can be detected in the presence of magnetic ...
A magnetic field is defined by the force that a charged particle experiences moving in this field, after we account for the gravitational and any additional electric forces possible on the charge. The magnitude of this force is proportional to the amount of charge q , the speed of the charged particle v , and the magnitude of the applied magnetic field.
Sep 28, 2024 · An electric current in a wire generates a magnetic field around the wire. The direction of the magnetic field (clockwise or counterclockwise) depends on the direction of the current. This is the "right hand rule," where the direction of the magnetic field follows the fingers of your right hand if your thumb is pointing in the current direction.
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The magnetic field is traditionally called the B-field. Figure 22.3.1 22.3. 1: Magnetic field lines are defined to have the direction that a small compass points when placed at a location. (a) If small compasses are used to map the magnetic field around a bar magnet, they will point in the directions shown: away from the north pole of the ...
