The ionization potential of mercury is approximately_____________?

Related Mcqs:

The ignited or auxiliary anode in mercury arc rectifier is made of____________?

A. graphite B. boron carbide C. aluminium D. copper...

The efficiency of an electrolytic rectifier is nearly____________?

A. 80% B. 70% C. 60% D. 40%...

The advantage of mercury arc rectifier is that________________?

A. it is light in weight and occupies small floor space B. it has high efficiency C. it has high overload capacity D. it is comparatively noiseless E. all of the above...

Glass rectifiers are usually made into units capable of D.C. output (maximum continuous rating) of _____________?

A. 100 A at 100 V B. 200 A at 200 V C. 300 A at 300 V D. 400 A at 400 V E. 500 A at 500 V...

Which of the following are the applications of D.C. system ?

A. Battery charging work B. Arc welding C. Electrolytic and electro-chemical processes D. Arc lamps for search lights E. All of the above...