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:

Electron Charge

A fundamental property of the electron indicating the amount of negative electrical charge it carries.

Atom Nucleus

The central core of an atom, containing protons and neutrons, around which electrons orbit.

AC Sinewave

Represents alternating current electricity in a waveform that alternates in a sinusoidal manner, typical of household electrical supply.

Ion

An atom with either an excess or a deficiency of electrons in the valence; a negatively or positively charged particle.