Fig. 4.1 shows a heater that is used to warm the air inside a room. The diagram depicts a room containing a chair and an electric heater.
(a(i))[1]
State the principal way thermal energy is transferred through the air in the room.
(a(ii))[3]
Explain how the heater warms the whole air supply in the room.
(b(i))[2]
Show that the current in the heater is about 8.7 A.
(b(ii))[2]
State which fuse is chosen. Explain your answer.
Worked solution & mark scheme
This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “convection” …
- Full mark scheme, point by point
- Step-by-step worked solution
- Write your answer & get it marked instantly by AI