An expression of "firmness".
ya ma
The temperature of the solid iron rod will depend on its surroundings and any heat sources or cooling mechanisms that may be affecting it. In general, the temperature of a solid iron rod will be the same as its surroundings if it has reached thermal equilibrium. However, if there are heat sources or cooling mechanisms in the vicinity, the temperature of the rod may differ.
The iron rod becomes shinier and the wool cloth wears out. If you rub the same wool cloth on a hard rubber rod, the rod will become charged with static electricity and you will be able to pick up small bits of paper with it---whoopee!
Conduction.
iron rod
If the rod is made from pure iron it is not a mixture.
name the acid which can cut the iron rod
Melting an iron rod is a physical change
8 mm iron rod 1 feet how much weight its come
Iron rod is a conductive material. You will get electrocuted if you touch a live wire with any conductive material like iron rod. It could be fatal to do so.
magnetism
An expression of "firmness".
I am not aware of a cast iron rod for oxy acetylene welding, I am for arc welding, For cast, I use a brazing rod, a brass or copper alloy, but what do I know. If there is a cast rod available, it would be the same process, get the cast you are welding hot almost to the point of melting, bring in the rod, heat it at the same place and bring both to a melting point. Work from that point along the crack or joint you are welding. ----------------------------------------------------------------------------------------------------------------- You need not use brazing rod for case iron welding. You get arc welding electrodes for cast iron. Use appropriate grade of rod for your case iron under welding.
what change will take place if two same materials are rubbed over each other
you use a super rod at iron island
Same direction!