Question

State true or false
1. The symbol represents an electric cell.
2. Heating element are made of a substance having low melting point.
3. On switching on the tube lights and CFL becomes warm.
4. The magnetic effect of Electricity was first observed by James Prescott Joule.
5. The heat produced in a conductor by an electric current also depends on the material of wire. 6. Electromagnets are used in laboratory only.​

Answer 1

Answer:

• 1) in picture (symbol is missing in your picture so correct symbol is Shawn in my picture)
• 2) yes
• 3)yes
• 4)no
• 5)yes
• 6)no