Home
Class 12
PHYSICS
Three charges +4q, Q and q are placed in...

Three charges `+4q`, Q and q are placed in a straight line of length l at points `0, (l)/(2)` and ldistance away from one end respectively. What shold be Q in order to make the net force on q to be zero?

A

`-q`

B

`-2q`

C

`-q//2`

D

`4q`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATICS

    RESONANCE ENGLISH|Exercise Part - II Section (B)|9 Videos
  • ELECTROSTATICS

    RESONANCE ENGLISH|Exercise Part - II Section (C)|14 Videos
  • ELECTROSTATICS

    RESONANCE ENGLISH|Exercise Exercise-1 Section (J)|7 Videos
  • ELECTROMAGNETIC INDUCTION

    RESONANCE ENGLISH|Exercise A.l.P|19 Videos
  • EXPERIMENTAL PHYSICS

    RESONANCE ENGLISH|Exercise PART -II|10 Videos

Similar Questions

Explore conceptually related problems

Three charge q , Q and -4q are placed in a straight line , line of length L at points distant 0 ,L//2 and L respectively from one end. In order to make the net force on q zero, the charge Q must be equal to

Three charges -q,+Q and -q are placed in a straight line as shown If the total potential energy of the system is zero, then the ratio (q)/(Q) is

Three charges -q,+2q, and -q are arranged on a line as shown in fig. Calculate the field at a distance rgtgta on the line.

Three point charge Q,4Q and 16Q are placed on a straight line 9 cm long.Charges are placed in such a way that the system has minimum potential energy .Then

Three charges +q, +q and -2q are placed at the vertices of an equilareral triagle. What is the dipole moment of the system?

Threee charges +Q_(1),+Q_(2) and q are placed on a straight line such that q is somewhere in between +Q_(1) and Q_(2) . If this system of charges is in equlibirium what should be the magnitude and sign of charge q?

Two charges 4q and q are placed 30 cm. apart. At what point the value of electric field will be zero

Three point charges -Q, Q and Q are placed on a straight line with distance d between charges as shown. Find the magnitude of the electric field at the point P in the configuration shown which is at a distance a from middle charge Q in the system provided that a gt gt d . Take 2Qd=p .

Charges -q , Q, and -q are placed at an equal distance on a straight liner. If the total potential energy of the system of three charges is zero, then find the ratio Q//q . .

Three charges Q, +q and +q are placed at the vertices of a right-angled isosceles triangle as shown. The net electrostatic energy of the configuration is zero if Q is equal to