Write any three uses of electromagnets.

Write any three uses of PCR

Write any three uses of magnets.

Write any three uses of gene cloning?

Write any three uses of gene cloning?

What is an electromagnet? How is it different from a permanent magnet? State two uses of electromagnet.

Write the relation for the speed of electromagnetic wave in terms of the amplitudes of electric and magnetic fields.

Describe very briefly any four regions of electromagnetic spectrum mentioning their special properties/features.

Water is very essential for life. Write any three features both for plants and animals which enable them to survive in water scarce environment.

Give any three uses of ethanoic acid.

State two common uses of electromagnets.