Homework SourseA powerconverter is plugged into a wall outlet 120V it is to
A power-converter is plugged into a wall outlet (120V); it is to provide DC at 6.00 V to an electronic device. (a) What sort of transformer is required, a \"step-up\" or a \"step-down\" transformer? (b) If there are 200 turns in the coil of the primary coil in the transformer, how many must there he in the secondary?![A power-converter is plugged into a wall outlet (120V); it is to provide DC at 6.00 V to an electronic device. (a) What sort of transformer is required, a \](/WebImages/9/a-powerconverter-is-plugged-into-a-wall-outlet-120v-it-is-to-999427-1761514677-0.webp "A power-converter is plugged into a wall outlet (120V); it is to provide DC at 6.00 V to an electronic device. (a) What sort of transformer is required, a \")
Solution
a. Step Down : Because final voltage is lesser
b. Vs / Vp = Ns / Np So, Ns = 6*200/120 = 10
