2. With electricity, the generation of electromotive force in a closed circuit by a varying magnetic flux through the circuit.
3. In logic, the process of deriving general principles from particular facts or instances; a conclusion reached by this process.
4. The act or process of inducing or making something happen; such as, in medicine, the inducing of birth labor, whereby labor is initiated artificially with drugs such as oxytocin.
5. Presentation of material; such as, facts or evidence in support of an argument or proposition.
6. In electricity, the generation of voltages, currents, electric fields, or magnetic fields by interactions among these quantities without direct contact.
2. The production of electric current in a circuit when it is passed through a changing magnetic field.
3. Voltage produced in a coil as a result of the relative motion between the coil and magnetic lines of force; such as, flux linkages passing through the coil changes.
4. The production of an electromotive force in a circuit by the variation of the magnetic field with which the circuit is connected.
5. The generation of an electromotive force by changing the magnetic flux through a closed loop circuit, or by moving a conductor across the magnetic field.
This principle is the basis for the electric generator and electric motor.
2. Modification in the distribution of an electric charge on one material under the influence of an electric charge on a nearby object which takes place whenever any object is placed in an electric field.
3. The production of an electric charge in an object when placed near a charged body.
4. A process of inducing stationary electric charges on an object by brining it near another object that has an excess of electric charges.
A positive charge will produce a negative charge, and a negative charge will produce a positive charge.
The intensity of a magnetic field can be measured by placing a current-carrying conductor in the field. The magnetic field exerts a force on the conductor, a force which depends on the amount of the current and on the length of the conductor.
One tesla is defined as the field intensity generating one newton of force per ampere of current per meter of conductor.
One tesla represents a magnetic flux density of one weber per square meter of area. A field of one tesla is quite strong: the strongest fields available in laboratories are about 20 teslas, and the earth's magnetic flux density, at its surface, is about 50 microteslas (µT); and one tesla equals 10,000 gauss.
Magnetic fields are measured in units of tesla (T). The tesla is a large unit for geophysical observations, and a smaller unit, the nanotesla (nT; one nanotesla equals 10−9 tesla), is normally used.
A nanotesla is equivalent to one gamma, a unit originally defined as 10−5 gauss, which is the unit of magnetic field in the centimeter-gram-second system. Both the gauss and the gamma are still frequently used in the literature on geomagnetism even though they are no longer standard units.
The tesla, defined in 1958, honors the Serbian-American electrical engineer Nikola Tesla (1856-1943), whose work in electromagnetic induction led to the first practical generators and motors using alternating current.