1. On which of the following factors does the resistivity of a material depend ? A. Resistance of the conductor B. Area of the conductor section C. Length of the conductor D. All of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
2. Piezoelectric materials serve as a source of ________ . A. Resonant waves B. Musical waves C. Microwaves D. Ultrasonic waves Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
3. The tiny block formed by the arrangement of a small group of atoms is called the A. Unit cell B. Space lattice C. Either A or B D. None of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
4. The number of atoms per unit cell in B.C.C. structure is A. 1 B. 2 C. 4 D. 8 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
5. Which of the following variety of copper has the best conductivity ? A. Induction hardened copper B. Hard drawn copper C. Pure annealed copper D. Copper containing traces of silicon Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
6. The kinetic energy of a bounded electron is A. Less than that of unbounded electron B. Greater than that of unbounded electron C. Equal to that of unbounded electron D. Infinite Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
7. Super conductivity can be destroyed by A. Adding impurities B. Reducing temperatures C. Application of magnetic field D. Any of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
8. The conductivity of a conductor can be increased by A. Decreasing its temperature B. Increasing its temperature C. Decreasing its vibration D. Increasing its vibration Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
9. Mercury as an electric contact material is A. A liquid B. A metal C. A metal liquid D. A gas Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
10. ________ has the best damping properties. A. Diamond B. High speed steel C. Mild steel D. Cast iron Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
