A Solenoid of Cross Sectional Area 1

question 17

Multiple Choice

A solenoid of cross sectional area 1.4 m² and 2.0 m long carries a current of 4.0 A.It stores an energy of 3.4 J.How many turns per unit length are in this solenoid?

• A)390 turns/m
• B)300 turns/m
• C)450 turns/m
• D)420 turns/m
• E) 350 turns/m

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Definitions:

Mobile Phase

In chromatography, the solvent that carries the sample through the stationary phase, allowing components to be separated.

Thin Layer Chromatography

An analytical technique used to separate and identify compounds in a mixture by distributing them between a stationary phase and a mobile phase.

Solid Coating

A layer of solid material applied to a surface for protection, decoration, or functional purposes.

Liquid

A state of matter that is fluid, conforms to the shape of its container, and retains a (nearly) constant volume independent of pressure.