1.

(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 ?

Answer»


Answer :(a) Solar cells convert Sunlight energy into Electrical energy ; During charging the BATTERIES, Electrical energy is CONVERTED into CHEMICAL energy ; During the use of batteries, Chemical energy is converted into Electrical energy ; Electric motor converts Electric energy into KINETIC energy (which drives the car)(b) (i) Batteries are charged QUICKLY (ii) Batteries are charged very slowly (iii) Batteries are not charged at all.


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