How Much Current Must Pass Through a 400 Turn Coil

question 86

Multiple Choice

How much current must pass through a 400 turn coil 4.0 cm long to generate a 1.0-T magnetic field at the center?

• A) 0.013 A
• B) 13 A
• C) 22 A
• D) 40 A
• E) 80 A

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Definitions:

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.

Output Frequency

The frequency at which an electronic device, such as an oscillator or amplifier, outputs its signal.

Revolving Armature Type

A design in electrical generators where the armature, or the part that generates electricity, rotates within a stationary magnetic field.