الجامعة الإسلامية – غزة كلية التربية قسم المناهج وطرق...
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Transcript of الجامعة الإسلامية – غزة كلية التربية قسم المناهج وطرق...
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: (Electrical Current ) .
: Electrical Voltage
() () () () .
1 2 .
V
1 = 1000 1 = 1000,000 1 = 1000
:
220 .
/ .
.
.
: Power )) .
/ .
W KW .
= = J : ( )
: : .................... ................. : 880 220
: +5 .....................................................................+5 +3 ................................................................... +5
: :* 1) 2) 3) 4)
.
:
( ).
. : .
* .
: ) .) .
: : . +- : / . . . : ) . ) .
: : ............ ......................... ............. .............
: 2.3.4.
.
23 . . 1 2 12 9 6 1.5 .
: 1) 2) + -+ -+ - . . : 4 1.5
= 1.5 + 1.5 + 1.5 + 1.5 = 6 : .
+ -+ -+ - 1. .
2. .
3.
1. .
2. .
3.
: :
:
: . .: : : ( ) - ( ) . .
32 .
( ) . ( ) . . . 2% 5% 10% 20% 1001011100221K3310K441M5510M661G7710G88-99 1 = 62 1000 ( )=62
= 62 95/100 = 58.9 = 62 105/100 = 65.1 +-5%+-5%+-5%+-5% 2 = 25 10000 ( )=250
= 250 95/100 = 267.5
= 250 105/100 = 237.5 +-5%+-5%+-5%+-5% : : 87 : : ) )
: * .
* 42 ( ) : =
= :
mA V9 mA 6 mA3 mA3612 : 2 8
2 = 2000
= = 8 / 2000 = 4 / /
.......... .
2. ..........
6 3 ( )
1 =1 1+1 2
1 2
49 1 = 1 2 = 2 3 = 3
12 8 : :1 =1 1+1 21 =18+112 = 24 / 5 = 4.8
1 2 = 1+ 2 1 = 1 2 = 2 3 = 3 : :
128 = 1+ 2 = 12 + 8 = 20 21 : ) . ) . : ) .................... ) ....................
: DC AC . :
. . 58 + -
2
1+- DCV DCV :
.
.
.
2
1+- DCA :
.
ohmmeter
2
1+- . () AC AC () ()
: ) .................... . ) .................... .
: : .................... ................. ........... ......................... ............. ............. .......... . .......... .................... .................... .................... .................... .
.