MAGNETIC EFFECT OF ELECTRIC CURRENT Introduction As we have already studied electricity and its effects you will be surprised to know that the  magnetic effect and heating effect  are after effects of current. In this chapter we …

ELECTRICITY Introduction The concept of electricity came into notice due to friction. It actually proves that charges can be produced and they can also be made to flow and flowing of charges gives rise to electricity. So let us f…

CONTROL AND CO-ORDINATION Living organisms respond to various stimuli like heat, light, cold, touch, pressure, etc. Example: Withdrawal of hand on touching a hot object. Control and Coordination in Animals It is brought about in …