Page 202 - Physics Form 5 KSSM_Neat
P. 202
Activity 5.9
SCAN ME
SCAN ME
Aim: To study the function of a transistor as an automatic switch Method to carry out
using a transistor kit Activity 5.9 without
transistor kit
A Light-controlled switch
KEMENTERIAN PENDIDIKAN MALAYSIA
Apparatus: Light-controlled switch transistor kit, 6 V power supply https://bit.ly/3bbJqaK
and connecting wires
Instructions:
6 V power supply Transistor kit
Top view of a transistor kit
Photograph 5.8 A light-controlled switch transistor kit
1. Connect the light control switch transistor kit to a 6 V direct current power supply.
2. Switch on the power supply and observe whether the LED lights up.
3. Then, cover the LDR with a finger. Observe whether the LED lights up.
Discussion:
1. Explain your observations:
(a) after the power supply is switched on
(b) while the LDR is covered with a finger
2. How does the transistor function as an automatic light control switch?
B Heat-controlled switch
Apparatus: Heat-controlled switch transistor kit, 6 V power supply and connecting wires
Instructions:
6 V power supply Transistor kit
Top view of a transistor kit
Photograph 5.9 A heat-controlled switch transistor kit
192 LS 5.3.2
