A. Induction hardened copper
B. Hard drawn copper
C. Pure annealed copper
D. Copper containing traces of silicon
Correct Answer: Pure annealed copper ✔
Last Updated: December 22, 2018
Related MCQs
- Which of the following is the poorest conductor of electricity ?
- Constantan contains__________?
- The structure sensitive property of a super conductor is__________?
- The transition temperature of mercury is__________?
- At transition temperature the value of critical field is__________?
- By increasing impurity content in the metal alloy the residual resistivity always__________?
- The coils of D.C. motor starter are wound with wire of__________?
- An H.R.C. fuse is__________?
- The conductors have transport phenomena of electrons due to__________?
- Which of the following resistive materials has the lowest temperature co-efficient of resistance ?
- Mercury as an electric contact material is__________?
- On which of the following factors does the resistivity of a material depend ?
- The value of critical field below the transition temperature will__________?
- Superconductivity is observed for__________?
- highest conductivity__________?
- High resistivity materials are used in__________?
- In a superconductor the value of critical density depends upon__________?
- The conductivity of a conductor can be increased by__________?
- The superconductivity is due to__________?
- Superconductors are becoming popular for use in__________?
- Which of the following materials is preferred for transmitting electrical energy over long distance ?
- A highly conductive material must have__________?
- The co-ordination number of a simple cubic structure is__________?
- The metal having the lowest temperature coefficient of resistance is__________?
- The kinetic energy of a bounded electron is__________?
- Commonly used conducting materials are__________?
- A perfect conductor has__________?
- The formula __________ determines the number of electrons that can be accommodated in any level?
- The converse of hardness is known as__________?
- is a negatively charged particle present in an atom__________?
- The tiny block formed by the arrangement of a small group of atoms is called the__________?
- The covalent bond is formed by__________?