Chapter XXV: Induced Currents 178

Electromagnetic Induction.--Exp. 175, To find whether a current
can be generated with a bar magnet and a hollow coil of
wire.--Discussion.--Induced Currents and Work.--Exp. 176, To
find whether a current can be generated with a bar magnet and
a coil of wire having an iron core.--Exp. 177, To find whether
a current can be generated with a horseshoe magnet and a coil
of wire having an iron core.--Induced Currents and Lines of
Force.--Exp. 178, To find whether a current can be generated
with an electromagnet and a hollow coil of wire.--Exp. 179, To
find whether a current can be generated with an electromagnet
and a coil of wire having an iron core.--Discussion of Exps.
178-179.--Exp. 180, To study the effect of starting or stopping
a current near a coil of wire or other closed circuit.--Exp.
181, To study the effect of starting or stopping a current
in a coil placed inside of another coil.--Discussion of
Exps. 180-181.--Direction of Induced Current.--Laws of
Induction.--Primary and Secondary Currents.--Exp. 182, To see
what is meant by alternating currents.--Direct and Alternating
Currents.--Self-induction; Extra Currents.

CHAPTER XXVI. THE PRODUCTION OF MOTION BY CURRENTS 187

Currents and Motion.--Exp. 183, Motion produced with a hollow
coil and a piece of iron.--Exp. 184, Motion with hollow coil
and bar magnet.--Exp. 185, Motion with electromagnet and
piece of iron.--Exp. 186, Motion with electromagnet and bar
magnet.--Exp. 187, Motion with electromagnet and horseshoe
magnet.--Exp. 188, Motion with two electromagnets.--Discussion
of Exps. 183-188.--Exp. 189, Rotary motion with a hollow coil
of wire and a permanent magnet.--Exp. 190, Rotary motion with
an electromagnet and a permanent magnet.--Discussion of Exps.
189-190.