Page 160 - Physics Form 5 KSSM_Neat

3. Move the copper rod quickly in direction A as shown in Figure 4.16. Observe the deflection of
the galvanometer pointer.
4. Repeat step 3 in directions B, C and D.
5. Hold the copper rod with your left hand. Lift up the Magnadur magnet with your right hand.
Move the Magnadur magnet in direction A and direction B with the copper rod stationary in
between the poles of the magnet. Observe the deflection of the galvanometer pointer.
KEMENTERIAN PENDIDIKAN MALAYSIA
6. Complete Table 4.3 with a tick (✓) for the direction of deflection of the pointer of the galvanometer.

Results:
Table 4.3

Deflection of galvanometer pointer
State of Magnadur
State of copper rod
magnet
To the left [–] Zero [0] To the right [+]

Stationary Stationary

Stationary Moves in direction A

Stationary Moves in direction B

Stationary Moves in direction C

Stationary Moves in direction D

Moves in direction A Stationary

Moves in direction B Stationary

Discussion:
1. What causes the deflection of the galvanometer pointer?
2. State the direction of the magnetic field between the poles of the magnet.
3. What are the directions of motion of the copper rod that causes the cutting of magnetic field lines?
4. Explain the condition where a current is produced in the copper rod.

B Solenoid
Apparatus: Bar magnet, solenoid (at least 400 turns) and sensitive centre-zero galvanometer or
digital multimeter
Material: Connecting wires with crocodile clips

150 LS 4.2.1