A system has two charges `q_(A)=2.5xx10^(-7) C` and `q_(B)=-2.5xx10^(-7) C` located at points A, `(0, 0, -0.15 m)` and B, `(0, 0, +0.15 m)` respective

Monjur Alahi

A system has two charges `q_(A)=2.5xx10^(-7) C` and `q_(B)=-2.5xx10^(-7) C` located at points A, `(0, 0, -0.15 m)` and B, `(0, 0, +0.15 m)` respectively. What is the total charge and electric dipole moment of the system?


0 like 0 dislike
1 views
Share with your friends

1 Answers

Salim Ahmed Kawsar

Call

Net charge `=2.5xx10^(-7) -2.5xx10^(-7)=0`
Electric dipole moment, `P = ("Magnitude of charge")xx("Separation between charges")`
`=2.5xx10^(-7) [0.15+0.15]C m =7.5xx10^(-8) Cm`
the direction of dipole moment is from B to A.

0 like 0 dislike
1 views
Talk Doctor Online in Bissoy App
Fig shows the electric field lines around three points charges A,B,C. (a) Which charges are positive ? (b) Which charge has the largest magnitude ? Wh

(i). Here, in the figure, the electric lines offorce emanate from A and C. Therefore, charges A and C must be positive. (ii) The number of electric lines of forces...

2 Answers 1 views
Two charges particles each having equal charges `2 xx 10^(-5) C` are brought from infinity to within a separation of 10 cm. Calculate the increase in

`DeltaU=U_(f)-U_(i)-0=U_(r)` We have to simply calculate the electrostatic potential energy of the given system of charges `:. DeltaU=U_(f)=1/(4pi epsi_(0)) (q_(1)q_(2))/r=(9xx10^(9)xx2xx10^(-5) xx2xx10^(-5)xx100)/(10) J=36 J` `:.` Work required `=36 J =` equal...

2 Answers 1 views
सिलिकॉन परमाणुओं की संख्या `5xx10^(28)` प्रति `m^(3)` है। यह साथ ही साथ आर्सेनिक के `5xx10^(22)`परमाणु प्रति `m^(3)` और इडियम के `5xx10^(20)` परमाणु प

Correct Answer - `n_(e)~~4.95xx10^(22);n_(h)=4.75xx10^(9);n`- प्रकार का चू्ंकि `n_(e)gt gt n(h)`

2 Answers 1 views
There charges q, 3q and 12q are to be placed on a straight line AB having 12 cm length. Two of the charges must be placed at end points A and B and th

Correct Answer - 12q and 3q at the two ends and q at a distance 8 cm from 2q. Force on q is zero.

2 Answers 3 views
Two charges `-2Q` abd `Q` are located at the points with coordinates `(-3a, 0)` and `(+3a, 0)` respectively in the x-y plane. (i) Show that all points

Correct Answer - (a) Radius 4a, cantre at `(5a,0)` (b). `V=(Q)/(4piepsilon_(0))[(1)/(|(x-3a)|)-(2)/(|(x+3a)|)]` (c). At `x=9a` where `V=0`, the charged particle eventually crosses the circle `v=sqrt((Qq)/(8piepsilon_(0)ma))`

2 Answers 1 views
Three charges -q, +q and -q are placed along a st. line at equal distance , say a. Calculated the potential energy of this system of charges (i) when

Correct Answer - `(3p^(2))/(8piepsi_(0)a),(ii) -(q^(2))/(8piepsi_(0)a)`

2 Answers 1 views
Two equal charges, +Q each, are at a distance r from each other. A third charge is placed on the line joining the above two charges such that all thes

Correct Answer - `q=Q//4`

2 Answers 2 views
Two identical positive charges are placed at the diagonally opposite corners of a square and two more identical but negative charges are placed at the

Correct Answer - `q^2((4-sqrt2))/(8piepsilon0a)j`

2 Answers 1 views
Two positive charges `q_(1)` and `q_(2)` are located at points with radius vectors `vecr_(1)` and `vec r_(2)`. Find the negative charge and its radius

Correct Answer - `q_(3)=(q_(1)q_(2))/(sqrtq_(1)+sqrtq_(2))^(2),vecr_(3)=(vecr_(1)sqrtq_(2)vecr_(2)sqrtq_(1))/(sqrtq_(1)+sqrtq_(2))`

2 Answers 1 views
Two point charges of `100 mu C` and another of `-400 mu C`, are kept 3.0 cm apart. Find the point where the electric field due to the two charges vani

Correct Answer - At a point 3.0 cm from A on BA produced

2 Answers 1 views
X