MATCHING
the Following Questions Pertain to the Display of NMR $\delta$

question 15

Multiple Choice

MATCHING
The following questions pertain to the display of NMR spectra. Match a term to each description below.
-The calibration standard for ¹H and ¹³C NMR is _____.

• A)TMS
• B)high-field or upfield side
• C)MHz
• D)delta (\(\delta\))
• E)low-field or downfield side
• F)chemical shift
• G)intensity

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Definitions:

Excitation Current

The current supplied to the field winding of a generator or motor to create the necessary magnetic field for operation.

Direct Current

An electric current that flows consistently in one direction, typical of battery power or certain types of power supplies.

Alternator's Rotor

The rotating component within an alternator that produces the magnetic field, essential for generating electricity in an automotive charging system.

Three-phase Alternator

An electric generator that produces three separate waves of alternating current, delivering power at constant rates.