Physics 9702 · AS & A Level · Characteristics of alternating currents
Characteristics of alternating currents — practice question
Fig. 11.1 shows a simplified block diagram of a mobile phone handset.
(a(i))[2]
Name block A and state its function.
(a(ii))[2]
Name block B and state its function.
(a(iii))[2]
Name block C and state its function.
(a(iv))[2]
Name block D and state its function.
(b)[2]
Give two reasons why communication between a mobile phone handset and the base station uses UHF.
Worked solution & mark scheme
This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The switch enables the same aerial to be used for both transmission and reception” …