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I n s t r u c t i o n   S h e e t

01 2 - 07 5 6 3C

Ring Launcher Accessory

EM-8662

800-772-8700

+1 916-786-3800

[email protected]

Equipment

Recommended

Ring Launcher

: EM-8661, includes the following:

Ring Launcher

Aluminum Rings (2): 2.5 cm inside diameter, 2.4 cm length, 
12.9 g

Introduction

The EM-8662 Ring Launcher Accessory includes three non-mag-
netic metal rings, and an induction coil attached to a light bulb. 
These accessories are designed to be used with the EM-8661 
Ring Launcher for demonstrating electromagnetic induction and 
magnetic force. The rings slide over the iron rod of the Ring 
Launcher, and, when the launch switch on the Ring Launcher is 
pushed down, the rings “jump” to different heights. The split alu-
minum ring is used to demonstrate what happens if there is not a 
complete conductive path. When the coil of the induction coil 
and bulb is placed around the iron rod, the bulb lights while the 
launch switch on the Ring Launcher is held down momentarily.

Setup

Follow the instructions and safety reminders described in the 
EM-8661 Ring Launcher Instruction Sheet.

WARNING

: Do not immerse the rings or the induction coil and 

bulb into water before using the Ring Launcher. Also, do not use 
the rings or the induction coil and bulb around water or with wet 
hands. 

CAUTION

: To prevent the rings from hitting other objects or 

people, allow a one meter radius of space around the Ring 
Launcher and a two meter distance above the Ring Launcher.

Ring Launcher Accessory Includes:

Copper Ring, 2.5 cm inside diameter, 2.5 cm long, 48.6 g

Split Aluminum RIng, 2.5 cm I.D., 2.4 cm long, 12.9 g

Small Aluminum Ring, 2.5 cm I.D., 1.2 cm long, 6.8 g

Induction Coil and Bulb: Tungsten filament light bulb in a 

plastic holding base (6.5 by 4 cm) with a copper 
induction coil

Iron 

Rod

EM-8662 Ring Launcher Accessory 

Copper 

Rings

Split 

Aluminum 

Ring

Small 

Aluminum 

Rings

Induction 

Coil and 

Bulb

Bulb

Copper Coil

Copper Coil

Plastic 

Base

Bulb 

Socket

Bottom view

Side view

Induction Coil and Bulb

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