Download Magnetism ppt Notes

Magnetism ppt Notes
In 1831, __________________________________ discovered that a momentary current
existed in a circuit when the current in a nearby circuit was started or stopped
Oersted showed that magnetic effects could be produced by
____________________________________; Faraday and Henry showed that electric
currents could be produced by moving _____________________
All magnetic phenomena result from forces between _________________ charges in
motion.
There are __________________ and _____________________ on every magnet.
Like poles repel, unlike poles _______________.
____________________ forces attract only magnetic materials.
Magnetic forces act at a ______________.
While magnetized, _________________________ magnets act like permanent magnets.
A ________________________with an electric current flowing through it becomes a
magnet.
Putting iron inside a current-carrying coil increases the __________________ of the
electromagnet.
A changing magnetic field induces an electric current in a ____________________.
A charged particle experiences no magnetic force when moving parallel to a magnetic
field, but when it is moving perpendicular to the field it experiences a ___________
perpendicular to both the field and the direction of motion.
A current-carrying wire in a perpendicular magnetic field experiences a force in a
direction perpendicular to both the ___________ and the ________________.
Magnetic field lines describe the structure of magnetic fields in _____ dimensions.
Field lines _______________ where the magnetic force is strong, and ____________
where it is weak.
An ________________________ is a machine which converts electrical energy into
mechanical (rotational or kinetic) energy.