engineering recuitment DRDO Technician A 2022 Mock Test Series (Tier I) Physics Electromagnetic Oscillations and Alternating Current Power in Alternating-Current Circuits
Which of the following item is used in the household wirings to prevent accidental fire in case of short circuit?
1
Insulated wire
2
Plastic switches
3
Non-metallic coatings on conducting wire
4
Electric fuse