section 16.5 simple d.c. motor
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8/14/2019 Section 16.5 Simple d.c. Motor
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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
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Simple d.c. motor
Motors found in many electrical appliances
16.5 Simple d.c. motor (SB p. 124)
Go to
Discussion 6Discussion 6
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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
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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
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Simple d.c. motor
16.5 Simple d.c. motor (SB p. 127)
plane of coil // field lines
rotates in clockwise
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Simple d.c. motor
16.5 Simple d.c. motor (SB p. 127)
plane of coil field lines
circuit broken
by inertia
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Simple d.c. motor
16.5 Simple d.c. motor (SB p. 127)
plane of coil // field lines again
rotates in clockwise
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Simple d.c. motor
16.5 Simple d.c. motor (SB p. 127)
plane of coil field lines again
circuit broken
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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
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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 -
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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)
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The End
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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)
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