When an electric current traverses a straight wire, it induces a magnetic field whose lines of force are concentric circles centered around the wire. This configuration illustrates the intimate relationship between electricity and magnetism, highlighting how electrical currents can create magnetic environmen...
This is theRight Hand Rulefor magnetic field from flowing current, and for magnetic field in a coil. When current flows in a wire, a magnetic field is created around the wire. To visualize this, take your right hand, curl the fingers, and stick the thumb straight out. Now, point your...
Around a permanent magnet or a wire carrying a steady electric current in one direction, the magnetic field is stationary and referred to as a magnetostatic field. At any given point its magnitude and direction remain the same. Around an alternating current or a fluctuating direct current, the...
Magnetic field, a vector field in the neighborhood of a magnet, electric current, or changing electric field, in which magnetic forces are observable. Magnetic fields such as that of Earth cause magnetic compass needles and other permanent magnets to lin
Magnetic Field Origin Magnetic Field Intensity Magnetic Field created by a Current-Carrying Conductor The Motion of Electrons around the Nuclei of Atoms Frequently Asked Questions – FAQs What is a Magnetic Field? Magnetic Field is the region around a magnetic material or a moving electric charge wi...
A magnetic field is avector, which means it has magnitude and direction. Ifelectric currentflows in a straight line, the right hand rule shows the direction invisible magnetic field lines flow around a wire. If you imagine gripping the wire with your right hand with your thumb pointing in th...
When such electrons are induced to move along a straight wire, a magnetic field is generated around the wire. The magnetic field is due to regions of vorticity in the primordial fluid around the wire. These regions result from a criss-crossing of fixed and moving ether springs. The fixed ...
field is also directly proportional to the currentI. The Magnetic field is avector quantitylike the Electric Field. The magnitude of the magnetic field is given by Equation [1] and the direction doesn't point away, towards, or in the same direction as the wire, but wraps around the wire...
Current-induced magnetic fields: (a) a straight wire and (b) a solenoid. The magnetic field of a solenoid is similar to that of a permanent magnet (shown earlier in Figure 17.1). This is not a coincidence. An electron orbiting around the nucleus of an atom is a form of charged ...
The orbital motion of an electron around the nucleus can be equated to a current in a loop of wire having no resistance. The magnetic moment of an electron, due to this motion, is as (4.5)μo=(area of loop)(current in emu) According to Bohr's theory (1913) of atom the electron ...