Home
Class 12
PHYSICS
A ring of radius R carries a non - unifo...

A ring of radius R carries a non - uniform charge of linear density `lambda = lambda_(0)costheta` sec in the figure) Magnitude of the net dipolement of the ring is :

A

`piR^(2)lambda_(0)`

B

`2piR^(2)lambda_(0)`

C

`(piR^(2))/(2)lambda_(0)`

D

`4piR^(2)lambda_(0)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATICS

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE - V) (LEVEL - II (ADVANCED) MORE THAN ONE CORRECT ANSWER TYPE QUESTIONS)|4 Videos
  • ELECTROSTATICS

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE - V) (LEVEL - II (ADVANCED) LINKED COMPREHENSION TYPE QUESTIONS)|3 Videos
  • ELECTROSTATICS

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE - IV) (LEVEL - II (ADVANCED) INTEGER TYPE QUESTIONS)|2 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

The dimensional formula of linear charge density lambda is

A thin nonconducting ring of radius R has a linear charge density lambda = lambda_(0) cos varphi , where lambda_(0) is a constant , phi is the azimuthal angle. Find the magnitude of the electric field strength (a) at the centre of the ring , (b) on the axis of the ring as a function of the distance x from its centre. Investegation the obtained function at x gt gt R .

Two semicircular rings lying in same plane, of uniform linear charge density lambda have radius r and 2r. They are joined using two straight uniformly charged wires of linear charge density lambda and length r as shown in figure. The magnitude of electric field at common centre of semi circular rings is -

Two semicircular rings lying in same plane, of uniform linear charge density lambda have radius r and 2r. They are joined using two straight uniformly charged wires of linear charge density lambda and length r as shown in figure. The magnitude of electric field at common centre of semi circular rings is -

Two fixed insulating rings A and B carry ahanges with uniform linear aharge density +lambda and -lambda , respectively, as shown in the adjacent figure. The planes of the rings are parallel to each other and their axes are coinciding. A particle of change "q" and mass "m" is released with zero velocity from centre P of the positively charged ring. The kinetic energy of the particle when it reaches centre Q of the negatively charge ring will be

A ring of radius R carries a uniformly distributed charge +Q. A point charge -q is placed on the axis of the ring at a distance 2R from the centre of the ring and released from rest. The particle executes a simple harmonic motion along the axis of the ring. State True or False.

If linear charge density of a wire as shown in the figure is lambda

An arc of radius r carries charge. The linear density of charge is lamda and the arc subtends an angle (pi)/(3) at the centre.

A half ring of radius r has a linear charge density lambda .The potential at the centre of the half ring is

A non conducting ring of radius R_(1) is charged such that the linear charge density is lambda_(1)cos^(2)theta where theta is the polar angle. If the radius is increased to R_(2) keeping the charge constant, the linear charge density is changed to lambda_(2)cos^(2)theta . The relation connecting R_(1) , R_(2)lambda_(1) and lambda_(2) will be