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58- محمود مجدي - ليالي الامتحان

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Published by salahatt500, 2024-06-27 16:55:16

58- محمود مجدي - ليالي الامتحان

58- محمود مجدي - ليالي الامتحان

92 29 …… F ،Imax 30 3 2 1 . . . . 3 2 1 31 3 2 1 32 3 2 1 8.645x10 33 −25kg. m s …… 4.5x10 8.7x10−10m 5.6x10−8m 6.09x10−10m −7m 1:3 34 3 1 1 3 9 1 35 36


93 1 I d 37 4d I 2I 4I 16I 38 3 1 7 5 , RB = 3Ω , VCC = 4 , V2 = 1 npn 39 αe RC = 600Ω 0.95 0.8 0.9 1.1 40 V2 =15v , V1= 65 3.8× − 1.9× − 8.28× − 6 41 45° 30° 60° 90° . . 42 43 n 2 1 2 n 1 X y Output 0 0 1 1 1 0 0 1


94 44 = 1 40 3000V B A 45 …… C I d C 46 2% 47 49 50 48 49 50 C I I 12000 75V V 5Ω 5Ω


2 95 -االمتحان الثاني - (a,d) 10V (c,d) 1 20V 10V 40V 35V Ω R (I=4A) 2 3 5 2.5 2 (V1,V2) 3 5V 3V 1.5V 0.5V 0.3Ω 4 1 5 3 5 µ µ µ 6 7 m 4x10-5 T 3x10-5 T 2x10-5 T 12A 4cm V2 V1


96 2 8 emf (A) emf (B) emf (A, B) 9 10 121 120 101 100 11 (t) 12 8t 6t 3t t A,B 13 4.4µF 10µF 20µF 14 15 6 V2 6 V2 V2 3 V2 (eV) (K) 16 3.4 10.2 13.06 13.6 B A


2 97 17 18 , (V) (v) 19 (2V) v 4v √ v 2v 20 X 21 22 3 23 24 15 6x10 6000 15 3x10 16 6x10 14 6x10 Imax F 0 Imax F Imax F Imax F


98 2 25 26 27 6 π 28 – – 29 30 0.015 0.06 0.03 31 (C) (B) 32 2 1


2 99 33 34 K1 K2 35 K2 K1 ، 5.5A 3A 9.6A 6A B I N 36 |⃑⃑⃑⃑⃑⃑ | 2|⃑⃑⃑⃑⃑⃑⃑ | |⃑⃑⃑⃑⃑⃑⃑ | |⃑⃑⃑⃑⃑⃑⃑ | 37 20 100 38 7500 250 150A 100A 60A 30A K1 K2 K2 K1


100 2 1024 Ω 4 Ω 39 8 4 40 41 B (A,B) A A (1,2) 42 (1) (2) 0.85A 0.59A 2.11A 1.51A 43 44 32 16 8 4 (1 ) (2 ) V I A B


2 101 45 (n=3) 2.92x1015 Hz 4.57x1014 Hz 3.29x1015 Hz 3.65x1015 Hz (A) %100 46 700nm (B) 500nm (B) (A) 47 3 40Ω 20Ω 16Ω 10Ω 8 (Rm) (Rg) 48 (Rm) 4 (Rs) 500V 49 5.30x10-10 m 4.22x10-10 m 5.49x10-11 m 6.44x10-11 m 50 1 2 1 7 2 3 2 7


102 1االمتحان الثالث - 3.2Ω 2.8Ω 6.6Ω 4.5Ω 2 2.2A 1.8A 1.2A 3.2A 2A 5 Ω 3 3A 3 Ω 15V 9V 12V 10V 4 18Ω 9Ω 10Ω 8Ω 6Ω 5 (A2) (A1) 12V 6 4V 12V 17V 24V 7 1Ω 3Ω 5Ω 6Ω (A2) I (A1) 8 (A3)


3 103 9 15 (Rm) (Rg) 10 (RS) (Rm) 8 20 4m 11 X 8A T -5 2x 10 1.2A 2.3A 1.9A 2.8A 12 + I1>I2 13 X 14 BIL BIL sin 45 BIL X,Y 15 N,S S,N S,S N,N B 2.2cm 16 110cm I1 I2 Y X X 1 2 Y


104 0.04B 0.5B 2B B 17 0.1mA 10 5 20 15 500 18 0.01Wb/s 0.7V 0.5V 5V 1 100 19 .......... 200 5x 104 4 x 104 0.5 x 104 2 x 104 20 emf emf emf emf 0.4H 21 0.4H 0.3H 0.2H 0.1H 22 -5 5.5 x 10 m2 11 14 3.2 x 10-3T 4.2 x 10-3T 1.42 x 10-3T 1 x 10-3T a,b 23 10V 10V 10V 300 30cm 40cm 24 50 11 200√2 50V 100V 200V 400V


3 105 emf 25 F 26 27 √ 240V 28 4A 3 2 25 Ω 40 Ω 50 Ω 60 Ω 29 7 22 7 22 50Hz 150 V 0.02A 0.1A 0.01A 0.001A


106 30 31 16mW 32 400nm 3.22 x 1022 3.22 x 1019 3.22 x 1016 3.22 x 1028 2.28eV 33 1.86eV 2.88eV 0.83eV 1.04eV Tx , Ty , Tz 34 Tx = Ty - Tz Tx> Ty > Tz Tz Tx Ty Tz Ty Tx m/s 35 5 6.24 x 10 Kg -31 9.1 X 10 N M K L 36 5.57 x 10-10 m 4.67 x 10-9 m 1.166 x 10 -10 m 6.25 x 10-9 m X 37 38 39


3 107 434.1 nm 40 5.03 x 10-19 5.44 x 10-19 4.24 x 10-19 4.57 x 10-19 41 : 42 E2 E3 43 44 5 10 30 20 CD 45 2.33A 0.5A 0.25A p-type 46 (P-N) 47 48 ) 49 7 ,10 5 (10 N-Type P-Type 50


5 108 1 )0االمتحان الرابع - 10 6 15 12 I2 I1 )2 R )3 6R 36R …… L )4 2L L 4L R1 2Ω )5 R2 1.64A 6.56A 4.8A 1.64A 6A 8Ω )6 4Ω cf ac ce df K )7 R a b b a


109 4 )8 a,b )9 d,c )10 )11 K Z Y X )12 0.2 2 0.5 L )13 m )14 )15 1.5eV )16 . × − × − . × − )17 )18 2 × 10 )19 11 20 × × × 2I X d d d Y Z K I


5 110 4 )20 2 )21 3I )22 )23 emf )24 )25 1 2 0.5A


111 4 314rad/s )26 s s s s 25 )27 0.075A/S 0.15 Wb/S 2H 3.75H 50H 12 mΩ )28 0.9 kΩ 1.0001 0.99 75001 . × − 400nm 12mW )29 . × . × . × . × 250V )30 12 Ω 10A 21.93Ω 17.67Ω 12.98Ω 5.68Ω 1Ω )31 20V 10V 12V 14V )32 nλ=2πr


5 112 T 10 m )33 -3 10A 5 x 10 20cm 5 x 10-3 N,1 x 10-7T 0.5 N,1 x 10-7T 0.5 N,1 x 10-5T 5 x 10-3 N,1 x 10-5T (N) (L) )34 (4L) (K) )35 (I) (VT) )36 D C B A 800Ω (X) )37 3 4 (X) Ω12000 (Y) )38


113 4 (I) )39 D C B A )40 D ⇾ B ⇾ A ⇾ C D ⇾ A ⇾ C ⇾ B B ⇾ C ⇾ A ⇾ D C ⇾ A ⇾ B ⇾ D )41 9 9 )42 – – – – )43 (c) (a,b) c )44 460nm 4.4x10-19 J 2.8x10-19 J 1.9x10-20 J 1.92x10-19 J )45 4x1016 J 2.5x1016 J 2.5x1020 J


5 114 (a,b )46 b a (b 1 (a (1 b (a 3 b a b , a b , a p , n npn )47 ((n2 ,n1 n1, n2 )48 1 2 500Ω 1 4 … 250Ω 1500Ω 500Ω 1000Ω AND ، )49 1 OR 14 9 3 2 emf 0.03 )50 0.06s 0.1s 0.08s 0.07s A B C D Output


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