Home
Class 12
PHYSICS
An electric field converges at the origi...

An electric field converges at the origin whose magnitude is given by the expression `E=100r N//C`, where r is the distance measured from the origin.

A

total charge contained in any spherical volume with its centre at origin is negative.

B

total charge contained at any spherical volume, irrespective of the location of its centre,is negative.

C

total charge contaied in a spherical volume of radius 3 cm with its centre at origin has magniture `3 xx 10^(-13) C`.

D

total charge contained in a spherical volume of radius 3 cm with its centre at origin has magnitude `3 xx 10^(-9)` Coul.

Text Solution

Verified by Experts

The correct Answer is:
A, B, C
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ELECTROSTATICS

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE - III) (LEVEL - II (ADVANCED) LINKED COMPREHENSION TYPE QUESTIONS)|2 Videos

  • ELECTROSTATICS

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE - III) (LEVEL - II (ADVANCED) MATRIX MATCHING TYPE QUESTIONS)|1 Videos

  • ELECTROSTATICS

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE - III) (LEVEL - II (ADVANCED) STRAIGHT OBJECTIVE TYPE QUESTIONS)|5 Videos

  • ELECTROMAGNETICS

    AAKASH SERIES|Exercise ADDITIONAL EXERCISE|13 Videos

  • ELEMENTS OF VECTORS

    AAKASH SERIES|Exercise QUESTIONS FOR DESCRIPTIVE ANSWERS|10 Videos

Similar Questions

Explore conceptually related problems

Find the locus of point whose distance from the origin is 5.

A particle is projected along a horizontal field whose coefficient of friction varies as mu=A//r^2 , where r is the distance from the origin in meters and A is a positive constant. The initial distance of the particle is 1m from the origin and its velocity is radially outwards. The minimum initial velocity at this point so the particle never stops is

Knowledge Check

  • suppose an electron is attracted towards the origin by a force k//r , where k is a constant and r is the distance of the electron form the origin. By applying bohr model to this system, the radius of n^(th) orbit of the electron is found to be r_n and

    A
    E
    B
    2E
    C
    3E
    D
    4E

    • Similar Questions

    Explore conceptually related problems

    An electric point dipole is placed at the origin O with its dipolemoment along the X-axis . A point A is at a distance r from the origin such that OA makes an angle pi//3 with the X -axis if the electric field vec( E) due to the dipole at A makes an angle theta with the positive X-axis, the value of theta is

    A point charge q is placed at the origin . How does the electric field due to the charge very with distance r from the origin ?

    The electric field in aregion is radially ourward with magnitude E=Ar . Find the charge contained in a sphere of radius a centred at the origin. Take A=100 V m^(-2) and a=20.0 cm .

    The electric field in a region is radially outward with magnitude E=Ar . Find the charge contained in a sphere of radius a centred at the origin. Take A=100 V m^(-2) and a=20.0 cm .

    The electric potential at a point (x,y) in the x-y plane is given by V=-kxy . The field intentisy at a distance r in this plane, from the origin is proportional to

    A solid insulating sphere of radius R has a nonuniform charge density that varies with r according to the expression rho = Ar^2 , where A is a constant and rltR is measured from the centre of the sphere. Show that (a) the magnitude of the electric field outside (rgtR) the sphere is E = AR^5//5epsilon_0r^2 and (b) the magnitude of the electric field inside (rltR) the sphere is E = Ar^3//5epsilon_0 .

    Suppose an electron is attracted toward the origin by a force (k)/(r ) where k is a constant and r is the distance of the electron from the origin .By applying Bohr model to this system the radius of the n^(th) orbital of the electron is found to be r_(n) and the kinetic energy of the electron to be T_(n) , Then which of the following is true ?

    Home
    Profile