Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Electrostatics question

2022 · 29 Jul · Shift 2 · Q44
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Electrostatics
  5. /2022 · 29 Jul · Shift 2 · Q44

Electrostatics question

2022 · 29 Jul · Shift 2 · Q44

JEE MainPhysicsElectrostaticsMCQ+4 / −1
Two identical metallic spheres A\mathrm{A}A and B\mathrm{B}B when placed at certain distance in air repel each other with a force of F\mathrm{F}F. Another identical uncharged sphere C\mathrm{C}C is first placed in contact with A\mathrm{A}A and then in contact with B\mathrm{B}B and finally placed at midpoint between spheres A and B. The force experienced by sphere C will be:
  1. A
    3F/2
  2. B
    3F/4
  3. C
    F
  4. D
    2F
PreviousNext

More from Electrostatics

  • A positive charge particle of 100 mg is thrown in opposite direction to a uniform electric field of strength 1 × 105 NC − 1. If the charge on the particle is 40 μ C and the initial velocity is 200 ms − 1, how much distance…2022 · MCQ
  • Two point charges Q each are placed at a distance d apart. A third point charge q is placed at a distance x from mid-point on the perpendicular bisector. The value of x at which charge q will experience the maximum Coulomb's force is :2022 · MCQ
  • If the electric potential at any point (x, y, z) m in space is given by V = 3x2 volt. The electric field at the point (1, 0, 3) m will be :2022 · MCQ
  • Eight similar drops of mercury are maintained at 12 V each. All these spherical drops combine into a single big drop. The potential energy of bigger drop will be ​ E. Where E is the potential energy of a single…2022 · Numerical
  • A cube is placed inside an electric field, E=150y2j​. The side of the cube is 0.5 m and is placed in the field as shown in the given figure. The charge inside the cube is : Includes diagram2021 · MCQ
  • Find out the surface charge density at the intersection of point x = 3 m plane and x-axis, in the region of uniform line charge of 8 nC/m lying along the z-axis in free space.2021 · MCQ
  • The electric field in a region is given by E=52​E0​i+53​E0​j​ with E0​=4.0×103CN​. The flux of this field through a rectangular surface area 0.4 m2…2021 · Numerical
  • An oil drop of radius 2 mm with a density 3g cm − 3 is held stationary under a constant electric field 3.55 × 105 V m − 1 in the Millikan's oil drop experiment. What is the number of excess electrons that the oil drop will…2021 · MCQ