During a hot summer, Thara’s father bought an Air Conditioner, and it was installed by an electrician. After the electrician left, she found an unknown material in her house and showed it to her father. Her father claimed it was a tester/screwdriver.
Answer variants:
Metals
PVC
No, its an insulator
To prevent electric shock
1. Why is the handle of the screwdriver insulated?
2. Will the bulb in the tester glow if the circuit is connected with a rubber?