Explain the following with reason: Fixed core made of non- magnetic material Is used in galvanometers

Explain the reason why laminated cores are used in transformers.

Which one of the following is used to make non-stick cookware?

Explain the following terms with suitable examples (i) cationic detergents (ii) anionic detergents and (iii) non-ionic detergents.

Which among the following is the special characterstics of a material to be used as a heating coil in a electric heating device ?

Which of the following material is used to make wire wound standard resistors?

Explain the reason for the following. C_2 molecule is stable and diamagnetic.

Explain the reason for the following . At the time of sunset western horizon is seen red .