If the length of an object becomes double due to 2∘C increase in temperature, then what will be the length expansion coefficient? A
2K−1

B
12K−1

C
1K−1

D
None

chemical properties of thing

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.