series arrangement of solar cells

parallel arrangement of solar cells

series-parallel arrangement of solar cells

none of the above

low efficiency

lack of availability

high cost and maintenance problems

all of the above

chemical energy into electrical energy

solar radiations into electrical energy

solar radiations into thermal energy

thermal energy into electrical energy

A.C.

D.C.

A.C. or D.C.

none of these

copper or aluminium

liquid metal

gas

liquid metal or gas