Question

help in the electromotive concept

Answer 1

Answer:

In electromagnetism and electronics, electromotive force (emf, denoted {\displaystyle {\mathcal {E}}}{\mathcal {E}} and measured in volts),[1] is the electrical action produced by a non-electrical source.[2] Devices (known as transducers) provide an emf[3] by converting other forms of energy into electrical energy,[3] such as batteries (which convert chemical energy) or generators (which convert mechanical energy).[2] Sometimes an analogy to water pressure is used to describe electromotive force.[4] (The word "force" in this case is not used to mean forces of interaction between bodies).

In electromagnetic induction, emf can be defined around a closed loop of conductor as the electromagnetic work that would be done on an electric charge (an electron in this instance) if it travels once around the loop.[5] For a time-varying magnetic flux linking a loop, the electric potential's scalar field is not defined due to a circulating electric vector field, but an emf nevertheless does work that can be measured as a virtual electric potential around the loop.[6]

Answer 2

Answer:

Heya sis....

An electromotive force (emf) is the potential

difference in between two points in a circuit.

The following equation shows that an induced

emf is directly proportional to the strength of the magnetic field (B), the length (l) of the wire and the relative velocity (v) of the wire and magnetic field.

Hope it’s helpful... ☺