Page 161 - Physics Form 5 KSSM_Neat
P. 161

Instructions:                                                                               CHAPTER 4
             1.  Set up the arrangement of apparatus as shown
                in Figure 4.17.                                    Connecting  Galvanometer  20  10  0   Electromagnetism
             2.  Hold the bar magnet stationary near the solenoid   wire                   30  G  10  20 30
                as shown in Figure 4.17. Observe the reading of
                the galvanometer.
              KEMENTERIAN PENDIDIKAN MALAYSIA
                                                                                         –  +
             3.  Push the bar magnet into the solenoid. Observe the
                deflection of the galvanometer pointer.
             4.  Hold the bar magnet stationary in the solenoid.
                Observe the reading of the galvanometer.
                                                                                       Solenoid
             5.  Pull the bar magnet out of the solenoid. Observe   Bar magnet
                the deflection of the galvanometer pointer.
             6.  Hold the magnet stationary. Move the solenoid
                towards and away from the bar magnet. Observe               Figure 4.17
                the deflection of the galvanometer pointer.
             7.  Complete Table 4.4 with a tick (✓) for the direction
                of deflection of the galvanometer pointer.

             Results:
                                                    Table 4.4

                                                              Deflection of galvanometer pointer
                 State of bar magnet    State of solenoid
                                                           To the left [–]   Zero [0]   To the right [+]

               Stationary            Stationary

               Moves into the solenoid  Stationary

               Moves out of          Stationary
               the solenoid

                                     Moves towards the
               Stationary
                                     bar magnet

                                     Moves away from the
               Stationary
                                     bar magnet

             Discussion:
             1.  What do you observe about the deflection of the galvanometer pointer when:
                (a)  the bar magnet is moved towards the solenoid?
                (b)  the bar magnet is moved away from the solenoid?
             2.  State the condition where a current is produced in the solenoid.








             LS     4.2.1                                                                     151
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