Physics, asked by amo24lika, 8 months ago

An electric dipole consists of two charges
of equal magnitude and opposite signs separated by a
distance 2a as shown in figure. The dipole is along the
X-axis and is centred at the origin.​

Answers

Answered by niranjana2015nair
0

Answer:

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Explanation:

Let, dipole of the K. B at point where +a charge and P at a point,

E  

1

​  

=  

K(BP)  

2

 

9

​  

=  

K(x−a)  

2

 

9

​  

 

(E  

1

​  

, towards  

OP

)

and, A at a point −9 charge where the electric field  at point P

E  

2

​  

=  

K(AP)  

2

 

9

​  

 

    =  

K(x+a)  

2

 

9

​  

 

(E  

2

​  

, towards  

PO

)

Since, E  

1

​  

 and E  

2

​  

 are same line but opposite in direction and E  

1

​  

>E  

2

​  

    ∴   P at a point,  

The resultant of electric field P.

E=E  

1

​  

−E  

2

​  

 

   =  

K

9

​  

[  

(x−a)  

2

 

1

​  

−  

(x+a)  

2

 

1

​  

]

   =  

K

9

​  

[  

(x−a)  

2

(x−a)  

2

 

(x+a)  

2

−(x−a)  

2

 

​  

]

E=  

K(x  

2

−a  

2

)  

2

 

9.4xa

​  

 

   =  

K(x  

2

−a  

2

)  

2

 

2px

​  

      [∵P=2aq]

Calculation at V at a point four from the dipole

V=  

q

E

​  

 

   =  

Kq(x  

2

−a  

2

)  

2

 

2px

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