-
8/14/2019 Section 16.5 Simple d.c. Motor
1/13
Manhattan Press (H.K.) Ltd. 1
Section 16.5Section 16.5
Simple d.c. motorSimple d.c. motor
Section 16.5Section 16.5
Simple d.c. motorSimple d.c. motor
-
8/14/2019 Section 16.5 Simple d.c. Motor
2/13
Manhattan Press (H.K.) Ltd. 2
Simple d.c. motor
Motors found in many electrical appliances
16.5 Simple d.c. motor (SB p. 124)
Go to
Discussion 6Discussion 6
-
8/14/2019 Section 16.5 Simple d.c. Motor
3/13
Manhattan Press (H.K.) Ltd. 3
Simple d.c. motor
16.5 Simple d.c. motor (SB p. 125)
Expt. 16E
Model electric
motor
magnet
armature
thin rod
split pin
to d.c.
power
supply
http://movie/Expt%2016E/16E.avi
-
8/14/2019 Section 16.5 Simple d.c. Motor
4/13
Manhattan Press (H.K.) Ltd. 4
Typical d.c. motor consists of
CAL
Workshop 2
Rotation of
motor
Simple d.c. motor
16.5 Simple d.c. motor (SB p. 126)
rotation
permanent magnet
armature
commutator
carbon brushes
http://cal/E-SimPhy_401.exe
-
8/14/2019 Section 16.5 Simple d.c. Motor
5/13
Manhattan Press (H.K.) Ltd. 5
Simple d.c. motor
16.5 Simple d.c. motor (SB p. 127)
plane of coil // field lines
rotates in clockwise
-
8/14/2019 Section 16.5 Simple d.c. Motor
6/13
Manhattan Press (H.K.) Ltd. 6
Simple d.c. motor
16.5 Simple d.c. motor (SB p. 127)
plane of coil field lines
circuit broken
by inertia
-
8/14/2019 Section 16.5 Simple d.c. Motor
7/13
Manhattan Press (H.K.) Ltd. 7
Simple d.c. motor
16.5 Simple d.c. motor (SB p. 127)
plane of coil // field lines again
rotates in clockwise
-
8/14/2019 Section 16.5 Simple d.c. Motor
8/13
Manhattan Press (H.K.) Ltd. 8
Simple d.c. motor
16.5 Simple d.c. motor (SB p. 127)
plane of coil field lines again
circuit broken
-
8/14/2019 Section 16.5 Simple d.c. Motor
9/13
Manhattan Press (H.K.) Ltd. 9
Simple d.c. motor
16.5 Simple d.c. motor (SB p. 128)
Turning effect depends on
(1) magnitude ofI
(2) no. of turns ofwire
(3) strength ofmagnet
(4) area of coil
-
8/14/2019 Section 16.5 Simple d.c. Motor
10/13
Manhattan Press (H.K.) Ltd. 10
Useful WebsiteUseful Website
(http://www.bud.org.tw/Ma/Ma19.htm)
NASA'S Image Reveals Earth's Invisible
Magnetic Tail(http://www
.gsfc.nasa.gov/gsfc/spacesci/sunearth/imagesci
)Simple Electric Motors
(http://www.simplemotor.com)
16.5 Simple d.c. motor (SB p. 132)
http://www.bud.org.tw/Ma/Ma19.htmhttp://www.gsfc.nasa.gov/gsfc/spacesci/sunearth/imagescience.htmhttp://www.gsfc.nasa.gov/gsfc/spacesci/sunearth/imagescience.htmhttp://www.gsfc.nasa.gov/gsfc/spacesci/sunearth/imagescience.htmhttp://www.simplemotor.com/http://www.simplemotor.com/http://www.simplemotor.com/http://www.simplemotor.com/http://www.gsfc.nasa.gov/gsfc/spacesci/sunearth/imagescience.htmhttp://www.gsfc.nasa.gov/gsfc/spacesci/sunearth/imagescience.htmhttp://www.gsfc.nasa.gov/gsfc/spacesci/sunearth/imagescience.htmhttp://www.bud.org.tw/Ma/Ma19.htmhttp://www.bud.org.tw/Ma/Ma19.htmhttp://www.bud.org.tw/Ma/Ma19.htmhttp://www.bud.org.tw/Ma/Ma19.htmhttp://www.bud.org.tw/Ma/Ma19.htmhttp://www.bud.org.tw/Ma/Ma19.htm
-
8/14/2019 Section 16.5 Simple d.c. Motor
11/13
Manhattan Press (H.K.) Ltd. 11
Mind MapMind Map
Magnetic effect
of a current
16.5 Simple d.c. motorturning effect
on a coil
16.4 Force on current-
carrying conductor
in magnetic field
Flemings left-hand ruledirection is governed by
application
due to
16.2 Magnetic effect
of electric current
straight wire
solenoid
circular coil
moving charges /
electric current
right-hand
grip rule
magnetic field patterns
are governed by
3 current-
carrying
conductors
magnetic effect
16.3 Electromagnetapplication
16.1 Magnetic force
and magnetic field
magnetS and N poles
magnetic field
unlike poles attract;
like poles repel
around a magnet
magnetic field linerepresented by
16.5 Simple d.c. motor (SB p. 132)
-
8/14/2019 Section 16.5 Simple d.c. Motor
12/13
Manhattan Press (H.K.) Ltd. 12
The End
http://phybk01eech01_02.ppt/http://phybk01eech01_02.ppt/
-
8/14/2019 Section 16.5 Simple d.c. Motor
13/13
Manhattan Press (H.K.) Ltd. 13
Discussion 6:Discussion 6:
List some applications of electric motor in ourdaily lives.
Vacuum cleaner, can opener, microwave oven,
fan, juicer and water sprayer.
Ans
wer
Return to
TextText
16.5 Simple d.c. motor (SB p. 124)
