Overhead telephone wires are made of_____________?

Related Mcqs:

The superconductivity is due to____________?

A. the crystal structure having no atomic vibration at 0°K B. all electrons interact in the super-conducting state C. the electrons jump into nucleus at 0°K D. none of the above...

At transition temperature the value of critical field is____________?

A. zero B. negative real value C. positive real value D. complex value...

Super conductivity can be destroyed by_____________?

A. adding impurities B. reducing temperatures C. application of magnetic field D. any of the above...

Substances whose specific resistance abruptly decreases at very low temperature are called___________?

A. insulators B. conductors C. semiconductors D. superconductors...

Which of the following factors affect resistivity of metals ?

A. Age hardening B. Alloying C. Temperature D. Cold work E. All of the above...