BASIC ELECTRICAL AND ELECTRONICS - Practice Mode
2) Which is the protective layer over the insulated cable?
Explanation:
Toughness:
When a huge external force is applied on a metal, the metal will experience fracture. Toughness is the ability of a metal to resist fracture. The ability of a material to resist fracture due to high impact loads, is called toughness.
Malleability:
It is the property by which a metal can be rolled into thin sheets. Highly malleable metals (like Mild Steel) are extensively used in making sheet metals.
Brittleness
Brittleness is a property of material which breaks with little or no deformation.
Hardness:
Hardness is the ability of a metal to resist permanent change of shape caused by an external force.
4) Which is the best electric conductor of material?
Explanation:
Toughness:
When a huge external force is applied on a metal, the metal will experience fracture. Toughness is the ability of a metal to resist fracture. The ability of a material to resist fracture due to high impact loads, is called toughness.
Hardness:
Hardness is the ability of a metal to resist permanent change of shape caused by an external force.
Ductility:
Ductility is the property by which a metal can be drawn into thin wires. It is determined by percentage elongation and percentage reduction in area of a metal.
Elasticity:
Whenever an external force is applied on a metal, it deforms. Elasticity is the property by virtue of which a metal regains its original shape when the external force applied on it is removed.