Essays Tagged: "Electromotive force"
Lenz's Law and Magnetic Flux
ins constant. Thus the counter emf controls the speed of a motor.For a given coil, the ratio of the electromotive force of induction to the rate of change in the coil is called the self-inductance of ...
Subjects: Science Essays > Physics
The Electric Generator.
rent is passed through wire coiled around it.§Electromagnetic Induction - the production of an electromotive force in a circuit by variation of the magnetic field with which the circuit is connec ... circuit is connected.§Electromagnetism - magnetism produced by a current of electricity.§Electromotive Force - the amount of energy derived from an electric source per unit of current passi ...
Subjects: Science Essays > Physics
Electromagnetic Induction
ced and investigated by Michael Faraday, in 1831. Electromagnetic induction is the production of an electromotive force (emf) in a conductor as a result of a changing magnetic field about the conducto ... Maxwell formulated the mathematical expression relating the change in magnetic flux to the induced electromotive force (emf). This relationship, known as Faraday's law of induction, states that the m ...
Subjects: Science Essays > Physics
Electricity/Voltage/Ground/Resistance
nd measured in volts (also abbreviated "V".) Voltage, also sometimes called potential difference or electromotive force (EMF), refers to the amount of potential energy the electrons have in an object ...
Subjects: Science Essays
Why is there resistance in wires?
to the other giving opposition or resistance to the electrons. When this happens electrons move an electromotive force such as voltage, and in hitting these atoms, also creates heat via friction of t ...
Subjects: Science Essays > Physics