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Title: 12th cbse important notes
Description: it will help you for your final exams..
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Short Answer type questions
1) What is the dimension formula for

1
4πε 0

?

ML3T −4 A −2
3 −2 −2
b) ML T A
2 −4 −2
c) ML T A
3 −1 −2
d) ML T A
a)

Ans (a)

2
...
X and Y repel each other And X attracts Z
...
On going away from point charge ,the electric field due to charge decreases
...
Does the electric field decreases at the same rate?
a) Yes
b) No
Ans (b)
The field due to electric charge decrease more rapidly as
Electric Field for electric dipole

Eα

1
r3

Electric Field due to charge

Eα

1
r2

4
Title: 12th cbse important notes
Description: it will help you for your final exams..
Buy These NotesPreview