|
Questions |
Answers |
| 1 |
Which element is the best conductor of electricity? |
Silver |
| 2 |
The characteristic of a superconductor is – |
Zero permeability |
| 3 |
At which temperature superconductivity can be of tremendous economic interest saving billions of rupees? |
At room temperature |
| 4 |
The highest temperature attained by a superconductor is – |
133 K |
| 5 |
The newly discovered high-temperature superconductors are – |
Ceramic oxides |
| 6 |
The conductivity of a semiconductor at zero Kelvin is – |
Zero |
| 7 |
The resistance of a semiconductor on heating – |
Decreases |
| 8 |
At absolute zero temperature, the electric resistance in a semiconductor is – |
Infinite |
| 9 |
Which one metal is used as a semiconductor in transistors? |
Germanium |
| 10 |
The most commonly used material for making transistors is – |
Silicon |
