A. decreases
B. increases
C. remains constant
Related Mcqs:
- Which of the following material is not a semiconductor ?
A. Silica
B. Germanium
C. Selenium
D. Gallium-arsenide - Which of the following is a semiconductor material ?
A. Phosphorous
B. Rubber
C. Silicon
D. Aluminium - Selenium is __________ semiconductor?
A. extrnisic
B. intmisic
C. N-type
D. P-type - 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 - 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 - Super conductivity can be destroyed by_____________?
A. adding impurities
B. reducing temperatures
C. application of magnetic field
D. any of the above - The conductivity of a metal is determined by____________?
A. the electronic concentration and the mobility of the free electrons
B. the number of valence electrons per atom
C. either (A) or (B)
D. none of the above - The converse of hardness is known as______________?
A. malleability
B. toughness
C. softness
D. none of the above - __________ is the main constituent of glass?
A. Fe203
B. Si02
C. AI2O3
D. B2O3 - Steel wire is used as____________?
A. overhead telephone wire
B. earth wire
C. core wire of ACSR
D. all of the above
