VII. Match the columns :
Column A
Column B
1. Electromagnet
2. Protective device
3. Electric bulb
(a) Electric fuse
(b) Magnetic compass
(c) Joule heating
(d) Solenoid
(e) Source of current
4. Electric iron
5. Sailors
6. Battery
7. Potential difference
Volt ☺
(g) Inert gas
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