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MODUL • Fizik TINGKATAN 5



                      Jenis
                    rektifikasi           Rajah litar                  Lakaran graf                  Penerangan
                     Types of          Diagram of the circuit          Sketch of graph               Explanation
                    rectification
                                            Diod   Ke O.S.K.        V = Beza keupayaan input (a.u.)  Proses di mana hanya separuh kitar
                                                                     in
                                            Diode  To C.R.O.       V  = Input voltage (a.c. current)  pertama arus ulang-alik, dibenarkan
                                                                    in
                                                                  V in                      mengalir dalam satu arah.
                                                                                            A process where only half of every
                                   a.c            R    V                                    cycle of alternating current is made to
                                                                                            flow in one direction.
                                                                                        t / s
                                                                 0
                                                                                            Dalam separuh kitar pertama, diod
                  Rektifikasi                                                               dipincang ke depan dan arus dapat
                  separuh                                                                   mengalir.
                  gelombang                                                                 In the first half cycle, the diode is
                  Half-wave                                       V R                       forward-biased and current can flow.
                  Rectification
                                                                                            Arus dihalang mengalir menerusi
                                                                                        t / s  diod dalam separuh kitar kedua
                                                                 0
                                                                                            apabila diod dipincang songsang.
                                                                                            The current cannot flow through the
                                                                                            diode in the second half-cycle when the
                                                                V  = Beza keupayaan output
                                                                 R
                                                                   melalui O.S.K.           diode is reverse-biased.
                                                                   Rectified voltage which shows
                                                                   in the C.R.O.
                                 (i) Separuh kitaran yang pertama arus a.u.  Beza keupayaan output merentasi R   Proses di mana kedua-dua separuh
                                      First half of cycle of a.c. current  Output voltage across R  daripada setiap kitaran arus ulang-
                                                                   V
                                                                    R                       alik, dibenarkan mengalir dalam satu
                                                                     (i)  (ii)  (i)  (ii)  (i)  arah / arah yang sama.
                                       D       D                                            A process where both halves of every
                                  A     4        1   Ke O.S.K.                              cycle of an alternating current is made
                                                     To C.R.O.    0                     t /s  to flow in the same direction.
                                  B                                                                                            UNIT 4
                                               D                                            Ketika separuh kitaran pertama, arus
                                          D      2                                          a.u.,(i), arus mengalir dari A ke D  ke
 UNIT 4
                                           3                                                                          1
                                                     R V
                                                          R                                 R, ke D  ke B.
                                                                                                  3
                                                                                            In the first half of the cycle of the a.c.
                                                                                            current, (i), the current flows from A to
                  Rektifikasi                                                               D 1  to R, to D 3  to B.
                  gelombang
                  penuh                                                                     Ketika separuh kitaran kedua, (ii),
                  Full-wave      (ii) Separuh kitaran yang kedua arus a.u.                  arus mengalir dari B ke D  ke R, ke
                  rectification        Second half of cycle of a.c. current                                     2
                                                                                            D  ke A.
                                                                                             4
                                                                                            In the second half, (ii), the current
                                                                                            flows from B to D 2  to R, to D 4  to A.
                                      D       D
                                    A   4       1   Ke O.S.K.                               Arah arus ulang-alik yang mengalir
                                                    To C.R.O.                               melalui perintang R untuk setiap
                                    B                                                       separuh kitaran adalah sama.
                                         D 3   D 2                                          The direction of alternating current
                                                                                            passing through the resistor R for each
                                                     R V R                                  half of the cycle is the same.













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