Home
Class 12
PHYSICS
Point charges +4q, -q are kept on the x-...

Point charges `+4q, -q` are kept on the `x`-axis at points `x=0,x=a` and `X=2a` respectively, then

A

Only -q is in stable equilibrium

B

None of the charge are in equilibrium

C

All the charge are in unstable equilibrium

D

All the charge are in stable equilibrium

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • COULOMB LAW AND ELECTRIC FIELD

    CENGAGE PHYSICS|Exercise Multiple Correct Answers Type|2 Videos

  • COULOMB LAW AND ELECTRIC FIELD

    CENGAGE PHYSICS|Exercise Comprehension Type|2 Videos

  • COULOMB LAW AND ELECTRIC FIELD

    CENGAGE PHYSICS|Exercise Integer|8 Videos

  • COMMUNICATION SYSTEM

    CENGAGE PHYSICS|Exercise QUESTION BANK|19 Videos

  • Current Electricity

    CENGAGE PHYSICS|Exercise QUESTION BANK|40 Videos

Similar Questions

Explore conceptually related problems

Point charges q_1 and q_2 lie o the x-axis at points x=-a and x=+a respectively. a. How must q_1 and q_2 be related for the net electrostatic force on point charge +Q , placed at x=+a/2, to be zero? b. With the same point charge +Q now placed ate x=+3a//2

Two point charges (+Q) and (-2Q) are fixed on the X-axis at positions a and 2a from origin respectively. At what positions on the axis, the resultant electric field is zero

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

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 (+Q) and (-2Q) are fixed on the X -axis at position a and 2a from origin respectively. At what position on the axis, the resultant electric field is zero

Point charges q_(1) =4 mu C and q_(2) = -2 mu C are kept at point x = 0 and x = 4 respectively , electrical potential will be zero at points (where x is in cm)

Charges 4Q, q and Q and placed along x-axis at positions x=0,x=t//2 and x=1 , respectively. Find the value of q so that force on charge Q is zero

Point charge q_(1) = 2 mu C and q_(2) = - 1mu C are kept at points x = 0 and x = 6 respectively. Electrical potential will be zero at points

Two conducting objects one with charge of +Q and another with -Q are kept on x -axis at x=-3 and x=+4 respectively. The electric field on the x -axis is given by 3Q(x^(2)+4/3) . What is the capacitance C of this configuration of objects?

CENGAGE PHYSICS-COULOMB LAW AND ELECTRIC FIELD-Single Correct Ansewr Type
  1. A positively charged insulator is brought near(but does not touch) two...

    Text Solution

    |

  2. Five balls numbered 1,2,3,4,and 5 are suspended using separated thread...

    Text Solution

    |

  3. There are two metallic spheres of same radii but one is solid and the ...

    Text Solution

    |

  4. When a body is earth connected, electrons from the earth flow into the...

    Text Solution

    |

  5. A positively charged rod is brought near to a non-conducting object. T...

    Text Solution

    |

  6. A point charge +q is placed at a distance d from an isolated conductin...

    Text Solution

    |

  7. In two cases, two identical conducting sphere are given equal charges,...

    Text Solution

    |

  8. The diagram shows the arrangement of three small uniformally charged s...

    Text Solution

    |

  9. The velocity of an electron at point A(1) is V(0) where cross sectiona...

    Text Solution

    |

  10. Two spherical conductors B and C having equal radii and cayying equal ...

    Text Solution

    |

  11. Two equally charged, indentical metal spheres A and B repel each other...

    Text Solution

    |

  12. Two small balls having equal positive charge Q (coulomb) on each are s...

    Text Solution

    |

  13. Two similar spheres having +Q and -Q charge are kept at a certain dist...

    Text Solution

    |

  14. Point charges +4q, -q are kept on the x-axis at points x=0,x=a and X=2...

    Text Solution

    |

  15. Two identical balls having like charges and placed at a certain distan...

    Text Solution

    |

  16. Two charges +4e and +e are at a distance x apart. At what distance,a c...

    Text Solution

    |

  17. Charges 4Q, q and Q and placed along x-axis at positions x=0,x=t//2 an...

    Text Solution

    |

  18. Two equal negative charges -q are fixed at points (0, -a) and (0,a) on...

    Text Solution

    |

  19. Two point charges +4q and +q are placed at a distance L apart. A thir...

    Text Solution

    |

  20. If two balls of given masses and charges are released, which of the fo...

    Text Solution

    |