Transformator: Perbedaan antara revisi

<math>V_\text{P} = -N_\text{P} \frac{\mathrm{d}\Phi}{\mathrm{d}t}</math> . . . (eq. 1){{efn|With turns of the winding oriented perpendicularly to the magnetic field lines, the flux is the product of the [[magnetic flux density]] and the core area, the magnetic field varying with time according to the excitation of the primary. The expression dΦ/dt, defined as the derivative of magnetic flux Φ with time t, provides a measure of rate of magnetic flux in the core and hence of EMF induced in the respective winding. The negative sign in eq. 1 & eq. 2 is consistent with Lenz's law and Faraday's law in that by convention EMF "induced by an ''increase'' of magnetic flux linkages is ''opposite'' to the direction that would be given by the [[right-hand rule]]."}}<ref>{{cite book|title=Electromechanics|url=https://archive.org/details/electromechanics0000hhsk|last=Skilling|first=Hugh Hildreth|publisher=John Wiley & Sons, Inc.|year=1962}} p. 39</ref>