Upload
ngoxuyen
View
215
Download
1
Embed Size (px)
Citation preview
* * : 2012 - 13 :
: X =
a ) 0 b) ∞ c) 500 J d) 250 J μF
a ) 0 μF b) 3 / 2 μF c) 6 μF d) 2 / 3 μF
a ) 1 % b) 2 % c ) 10 % d ) 5 %
a ) b ) c ) d )
a) ampere b) kelvin c ) volt d ) second
a ) b ) c ) d )
a ) b ) c ) d )
μ
a ) μ : 1 b ) 1 : μ c ) μ2 : 1 d ) 1 : μ2
a ) b )
c ) d )
0.005 m 2500 6000 A0
a ) 3 b ) 2 c ) 1 d ) 4
: X =
Q
A
3.186 X 10 -11 F
: X =
3.6 X 10 -4
AC
n
: X =
AC
@@@@ BEst wishes @@@@
www.Padasalai.Net - Page No -1
:
: 3 : 150
I
: ( i ) 30 X 1 30
( i i )
( i i i )
1.129 X 10 11 1.6 X 10 -19 6.26 X 10 18 8.85 x 10 12.
.
+ q , – q – q , + q ∞, – q ∞, + q.
1 / ε o
400 W 2 W 480 W 240 W.
C
µ
µ0 I / 4πa µ0 I / 2πa µ I / 4πa µ I / 2πa.
www.Padasalai.Net - Page No -2
5 A DC
50 A rms 5 A 5 A rms
2 X 10 -8 s 2 X 10 -10 s 5 X 10 -8 s 5 X 10 -10 s.
4000 A o 2 X 10 – 7m
π 2 π (3 π) /2 π / 2 o
1.414 1.732 1.0 1.5
II
: ( 15 X 3 = 45 )
0oC 10 Ω 0.004 / oC 0oC
5%.
100W, 220 V
rms
Q-
4 A 0.5 s 8 A 50 mV
AC DC
60 cc 300 mm 90
60
0
www.Padasalai.Net - Page No -3
III
: ( i ) 7 X 5 35
( i i )
( i i i )
12 µC , 8 µC 10 cm 6 cm
AC
10,000 100 cm2
3.6 X 10 – 2
T
140 rpm
80% 4 kW 100 V
240 V
n
5000 lines per cm 7070 Ao
5000 Ao
IV
: ( i ) ( 4 X 10 = 40 )
( i i )
AC
R L C
(i) (ii) (iii)
***** BEst wishes *****
B.Elangovan.M.Sc.,M.Ed.,M.Phil., PG Teacher in Physics, Pachaiyappa’s Hr.Sec.School, Kanchipuram-631501.
email id : [email protected] Phone: 9444438464
www.Padasalai.Net - Page No -4