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

Electrostatics question

2021 · 22 Jul · Shift 2 · Q69
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Electrostatics
  5. /2021 · 22 Jul · Shift 2 · Q69

Electrostatics question

2021 · 22 Jul · Shift 2 · Q69

JEE MainPhysicsElectrostaticsNumerical+4 / −1
The total charge enclosed in an incremental volume of 2 ×\times× 10 −-− 9 m3 located at the origin is ‾\underline{\hspace{2cm}}​ nC, if electric flux density of its field is found as D = e −-− x sin y i^−\widehat i-i− e −-− x cos y j^\widehat jj​+ 2z k^\widehat kk C/m2
Numerical answer
PreviousNext

More from Electrostatics

  • A cube of side 'a' has point charges +Q located at each of its vertices except at the origin where the charge is − Q. The electric field at the centre of cube is : Includes diagram2021 · MCQ
  • Two electrons each are fixed at a distance '2d'. A third charge proton placed at the midpoint is displaced slightly by a distance x (x << d) perpendicular to the line joining the two fixed charges. Proton will execute simple harmonic…2021 · MCQ
  • A point charge of +12 μ C is at a distance 6 cm vertically above the centre of a square of side 12 cm as shown in figure. The magnitude of the electric flux through the square will be ​× 103 Nm2/C. Includes diagram2021 · Numerical
  • The electric field in a region is given by E=(53​E0​i+54​E0​j​)CN​. The ratio of flux of reported field through the rectangular surface of area 0.2 m2…2021 · Numerical
  • 512 identical drops of mercury are charged to a potential of 2V each. The drops are joined to form a single drop. The potential of this drop is ​ V.2021 · Numerical
  • A charge 'q' is placed at one corner of a cube as shown in figure. The flux of electrostatic field E through the shaded area is : Includes diagram2021 · MCQ
  • Two identical conducting spheres with negligible volume have 2.1 nC and − 0.1 nC charges, respectively. They are brought into contact and then separated by a distance of 0.5 m. The electrostatic force acting between the spheres is ​×…2021 · Numerical
  • Two small spheres each of mass 10 mg are suspended from a point by threads 0.5 m long. They are equally charged and repel each other to a distance of 0.20 m. The charge on each of the sphere is 21a​×10−8 C. The…2021 · Numerical