Home
Class 12
PHYSICS
Four point charges are placed at the cor...

Four point charges are placed at the corners of a square ABCD of side 10 cm, as shown in figure. The force on a charge of `1muC` placed at the centre of square is

A

7 N

B

8 N

C

2 N

D

zero

Text Solution

Verified by Experts

The correct Answer is:
D
Force of repulsion on `1muC` charge at O due to `3muC` charge, at A and C are equal and opposite. So they cancel each other.
Similarly, force of attraction of `1muC` charge at O due to `-4muC` charges at B and D are also equal and opposite. So they also cancel each other.
Hence the net force on the charge of `1muC` at O is zero.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ELECTRIC CHARGES AND FIELDS

    NCERT FINGERTIPS|Exercise Electric Field|16 Videos

  • ELECTRIC CHARGES AND FIELDS

    NCERT FINGERTIPS|Exercise MCQs|2 Videos

  • ELECTRIC CHARGES AND FIELDS

    NCERT FINGERTIPS|Exercise Coulomb'S Law|13 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

  • ELECTROMAGNETIC INDUCTION

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

Similar Questions

Explore conceptually related problems

Four point masses are placed at the corners of a square of side 2 m as shown in the figure. Find the centre of mass of the system w.r.t. the centre of square.

Four point charges q_(A) = 2 mu C , q_(B) = -5 mu C, q_(C) = -2 mu C and q_(D) = -5 mu C are located at the corners of a square ABCD of side 10 cm. What is the force on a charge of 1 mu C placed at the center of the square ?

Knowledge Check

  • Four charges q_A=2muC,q_B=-5muC,q_c=2muC and q_D=-5muC are placed at comers of a square ABCD of side 10 cm. What is the force on a charge of 1muC placed at centre of the square?

    A
    `10xx10^-7N`
    B
    `10xx10^-5N`
    C
    `10xx10^-2N`
    D
    Zero

  • Four charges are arranged at the corners of a square ABCD as shown in the figure. The force on the charge kept at the centre O will be:

    A
    perpendicular to side AB
    B
    along the diagonal BD
    C
    along the diagonal AC
    D
    zero

  • Four charges are arranged at the corners of a square ABCD , as shown in the adjoining figure, The force on a positive charge kept at the centre O is

    A
    Zero
    B
    Along the diagonal `AC`
    C
    Along the diagonal `BD`
    D
    Perpendicular to side `AD`

    • Similar Questions

    Explore conceptually related problems

    Four point charges q_A =2 mu C , q_B =5 muC , q_C =2 mu C and q_D =5 mu C are located at the corners of a square ABCD of side 10 cm. What is the force on a charge of 1mu C placed at the centre of the square ? (##U_LIK_SP_PHY_XII_C01_E01_006_Q01.png" width="80%">

    Four point charges are placed at the corners of a square of side l. Calculate potential at the centre of square.

    [" 4.Four point charges "q_(A)=2 mu C" and "q_(B)=-5 mu C,q_(C)=],[2 mu c" and "q_(D)=-5 mu c" are located at the corners of a "],[" square "ABCD" of side "10cm" .What is the force on a "],[" charge of "2 mu c" placed at the centre of the square? "]

    Four charges are arranged at the corners of a square ABCD as shown in the figure. The force on the positive charge kept at the centre O is

    Four charges are arranged at the corners of a square ABCD as shown in the figure. The force on the charge kept at the ccentre O is

    Home
    Profile