2 Core-describe the construction of a basic iron cored transformer as used for voltage transformations-recall and use the equation(Vp / Vs) = (Np / Ns)-describe the use of the transformer in high- voltage transmission of electricity-give the advantages of high voltage transmission
3 Extended -describe the principle of operation of a transformer -recall and use the equation Vp lp = Vs Is (for 100% efficiency)-explain why energy losses in cables are lower when the voltage is high
4 Electromagnetic Induction Transformers You should learn:A changing magnetic field from one coil can induce an e.m.f. in another coilThe parts of a transformerHow to do transformer calculationsWhy transformers are used for power distribution.
6 Some equations = Vp x Ip=Vs x Is Power = V x I = I2R = V2/R Secondary voltage=number of turns on secondaryPrimary voltagenumber of turns on primaryAnd if transformer is 100% efficientVp x Ip=Vs x IsPower = V x I = I2R = V2/R