Name the type of cell which was used in Apollo space programme for providing electrical power.

(a) Calculate Delta_(r)G^(@) for the reaction Mg(s)+Cu^(2)(aq)rarrMg^(2+)(aq)+Cu(s) Given : E^(@)cell=+2.71 V,1F=96500 C mol^(-1) (b) Name the type of cell which was used Apollo space programme for providing electrical power

Name two types of cells.

From the given cells : Answer the following : (i) Which cell is used in hearing aids? (ii) Which cell was used in Apollo Space Programme? (iii) Which cell is used in automobiles and inverters? (iv) Which cell does not have long life?

Name the phenomenon which is made use of in an electric generator.

Name the types of wires or cables used the electric power supply provided by the tate Electricity Board for houses and factories.

Name any two types of cells which act as 'cellular barriers' to provide innate immunity in humans.