There Is About 1-2% of ______________ Added to the Filament

question 92

Multiple Choice

There is about 1-2% of ______________ added to the filament to increase thermionic emission.

• A) thorium
• B) rhenium
• C) tungsten
• D) copper

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Definitions:

Causation

The act or process whereby one event, process, or state (a cause) leads to the production of another event, process, or state (an effect).

Positive Economic Statement

A statement that can be proved or disproved by reference to facts.

Normative Economic Statement

A subjective statement that expresses an opinion or a value judgment about what ought to be, rather than what is.

Can Be Verified

Indicates that a certain piece of information, claim, or data can be checked and confirmed for accuracy or truthfulness.