Question

(i) Study the diagram and name the parts marked as A, B, C, and D. 
(ii) Write the function of A and C.

 

Hint:

The heating element is the part that directly converts electrical energy to heat in devices like electric heaters and irons.

Answer 1

Part A: The diagram represents a typical electric heater or an electrical appliance. In this context: 
- A is the heating element. 
Part B: The part labeled B is the insulating material. It protects the electrical components and ensures safety by preventing electrical leakage. 
Part C: The part labeled C represents the wire wound around the heating element that conducts the current through the element. 
Part D: The part labeled D is the metal casing or the outer surface that holds the internal parts and provides mechanical protection. 
Functions: Function of A (Heating element): It generates heat when an electric current passes through it. This heat is transferred to the surrounding environment or the object to be heated. 
Function of C (Wire): It allows the passage of electric current to the heating element, enabling it to function by converting electrical energy into heat.