Pasco EM-6723 500-Turn Field Coil User Manual download pdf

Instruction Sheet

012-10120A

800-772-8700 www.pasco.com

500-Turn Field Coil

EM-6723

Introduction

PASCO model EM-6723 is a 500-turn wire coil on a ring-shaped

bobbin with a diameter of about 21 cm. The base of the assembly

has two binding posts for connecting 4 mm banana plugs. Use the

binding posts to connect a device to the coil. Do not allow the

current to exceed 2 A.

A 1/4-20 threaded mounting hole in the base allows the coil to be

fastened to other equipment, such as the EM-6715 Helmholtz

Base.

Holes in the sidewalls of the bobbin allow students to see how the

coil is wound. The holes are tangent with the inside of the wind-

ing so that students can measure the inner diameter.

Experiments

In combination with other equipment, the 500-Turn Field Coil

can be used in a variety of demonstrations and experiments,

including the following.

• Mount two field coils on the Helmholtz Base (EM-6715) to

create a Helmholtz coil.

• Drive the field coil with a triangle wave at about 500 Hz.

Use an oscilloscope to measure the emf induced in a detector

coil. Move the detector coil to find the strength and direction

of the magnetic field at various locations. Measure how the

induced emf depends on the angle between the field coil and

the detector coil. Vary the driving frequency to measure how

the induced emf depends on the time rate of change of the

magnetic field.

For details of this experiment see Christopher C. Jones,

Faraday’s Law apparatus for the freshman laboratory,

American Journal of Physics 1987; 55 (12): 1148–1150.

• Do the above experiment with a ScienceWorkshop 750 inter-

face and a voltage sensor. Use the voltage sensor to measure

Included Equipment Part Number

500-Turn Field Coil EM-6723

Related Equipment

200-Turn Field Coil EM-6711

Detector Coil (400 turn) EM-6712

Detector Coil (2000 turn) EM-6713

Helmholtz Base EM-6715

Recommended Equipment to Drive Coil (one needed)

ScienceWorkshop

750 Interface CI-7650

GLX Power Amplifier PS-2006

Low Voltage AC/DC Power Supply SF-9584A

Digital Function Generator/Amplifier PI-9587C

1 2

Summary of Contents

Page 1 - 500-Turn Field Coil

Instruction Sheet012-10120A800-772-8700 www.pasco.com®500-Turn Field CoilEM-6723IntroductionPASCO model EM-6723 is a 500-turn wire coil on a ring-shap

Page 2 - Technical Support

®500-Turn Field Coil EM-67232the induced emf in the detector coil.• Drive the coil with direct current. Use a magnetic field sen-sor to find the stre

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Pasco EM-6723 500-Turn Field Coil User Manual

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