Related InterviewSolutions

• Where is a fuse placed in an electrical circuit? Name a material suitable for making a fuse wire. 
• Name three main characteristics of an heating element.
• What are ‘dual switches’? Mention their one main use. 
• Mention three uses of the carbon arc. 
• Name two common material used for heating elements. 
• Why is a concave reflector placed behind the heating element in a room heater.
• In an electric radiator or room heater, state with reason, why the porcelain tube wound with a nichrome wire is placed between the pole and principal focus of the parabolic concave reflector.
• Why is the heating element of an electric oven wound on a helix? State the reason. 
• Why is heating element wound on a long porcelain rod in a room heater.
• Why is heating coil wound in the form of a helix in electric stove?