A good electric contact material should have all of the following properties except_____________?

Related Mcqs:

Which of the following materials is preferred for transmitting electrical energy over long distance ?

A. Copper B. Aluminium C. Steel reinforced copper D. Steel reinforced aluminium...

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...

__________ is a hard solder?

A. Tin-lead B. Tin-silver-lead C. Copper-zinc D. None of the above...

Which of the following materials is used for making coils of standard resistances ?

A. Copper B. Nichrome C. Platinum D. Manganin...

In conductors conduction of electricity takes place due to movement of_______________?

A. electrons only B. positive ions only C. negative ions only D. positive and negative ions E. none of the above...