Home
Class 12
PHYSICS
Two point charges +q and -q are held fix...

Two point charges +q and -q are held fixed at `(-a,0)` and `(a,0)` respectively of a x-y coordinate system then

A

electric field E at all points on the x-axis has the same direction.

B

electric field at all points on the y-axis is along the x-axis

C

work has to be done in bringing a test charge from `oo` to the origin.

D

the dipole moment is 2qd along the x-axis.

Text Solution

Verified by Experts

b. If we take a point `M` on the x-axisas shown in Fig. SAI.127, then the net electric field in in the x-direction.Therefore, option (a) is incorrect. If we take a point `N` on y-axis, we find net electric field along `+x`-direction. The same will be true for any point on Y-axix.
Option (c) is incorrect, The direction of dipole moment is from negative to positive Therefore, (d) is incorrect.
Promotional Banner

Topper's Solved these Questions

  • MISCELLANEOUS VOLUME 3

    CENGAGE PHYSICS ENGLISH|Exercise Assertion and Reason Type|8 Videos

  • MISCELLANEOUS VOLUME 3

    CENGAGE PHYSICS ENGLISH|Exercise Comprehension Type|94 Videos

  • MAGNETIC FIELD AND MAGNETIC FORCES

    CENGAGE PHYSICS ENGLISH|Exercise Multiple Correct Answer type|2 Videos

  • MISCELLANEOUS VOLUME 5

    CENGAGE PHYSICS ENGLISH|Exercise Integer|12 Videos

Similar Questions

Explore conceptually related problems

In the figure, two point charges +q and -q are placed on the x-axis at (+a,0) and (-a,0) respectively. A tiny dipole of dipolem moment (p) is kept at the origin along the y-axis. The torque on the dipole equals

Two point charges of magnitude +q and -q are placed at (-d//2,0,0) and (d//2,0,0) are respectively. Find the equation of the euipotential surface where the potential is zero.

Two point charges -q and +q are located at points (0,0-a) and (0,0,a) respectively. The electric potential at point (0,0,z) is (Z gt a)

Two point charges Q and -Q/4 are separated by a distance x.

Two point charges q and –q are at positions (0,0,d) and (0,0, –d) respectively . What is the electric field at (a,0,0 ) ?

Two point charges q and –q are at positions (0,0,d) and (0,0, –d) respectively . What is the electric field at (a,0,0 ) ?

Two point charges +8q and -2q are located at x=0 and x=L respectively. The location of a point on the x axis at which the net electric field due to these two point charges is zero is

A two point charges 4q and -q are fixed on the x - axis x=-d/2 and x = d/2 , respectively. If a third point charge 'q' is taken from the origin to x = d along the semicircle as shown in the figure, the energy of the charge will

Two point charges +8q and -2q are located at x=0 and x=L respectively. The location of a point on the x-axis from +8q at which the net electric field due to these two point charges is zero is

Two charges q_(1) and q_(2) are placed at (0,0,d) and (0,0,-d) respectively. Find locus of points where the potential is zero.