Electric Cars Help You Save Tax

How does the magnetic effect of electric current help in the working of an electric bell? Explain with the help of a diagram.

(a) Solar cells are used to provide the electric current to charge the batteries of a car driven by an electric motor. Describe the energy changes which take place. (b) What differences would you expect in the charging of car batteries (i) in bright sunlight (ii) on a cloudy day (iii) at night ?

Is is necessary to save electricity ? If so, suggest a few ways to save electricity.

What type of elastic fuse is used in electrical appliances like car stereos ? Explain with the help of a labelled diagram.