Tag Archives: class 10 science


Sources of Energy QUES.1 What are Sources of energy? Ans. 1  A substance that provides us with energy in the form of heat,light etc. is  known as sources of energy. E.g Coal, petroleum, wood. Ques.2 State various types of sources of energy. Difference between them? Ans.2 Renewable Non-Renewable These are called alternative sources of energy… Read More »


Electricity Class-10th Ques.1 What is current ? Write its S.I unit? Ans.1 Electric Current is expressed by the amount of charge flowing through a particular area. S.I unit – Ampere (A)   Ques.2  What the positive is the direction of current conventionality? Ans.2  From the positive terminal to negative terminal.   Ques.3 Give the expression… Read More »