Electrostatics MCQs
Hello, readers! Learn MCQs for 12th grade Physics Unit 01, “Electrostatics,” on this website. Electrostatics is the branch of physics that studies charge in its resting state.
Electrostatics MCQs
Electrostatics MCQs
Q.1: Two charges 3×10-5C and 5×10-4C are placed at a distance 10 cm from each other. Find the value of electrostatic force acting between them.
[A] 13.5×1011N
[B] 40×1011N
[C] 180×109N
[D] 13.5×1010N
[A] 13.5×1011N
Q.2: What is the S. I. unit of electric flux?
[A] N m2/C
[B] N m2
[C] N m-2C
[D] N2 m2/C2
[A] N m2/C
Q.3: What is the value of minimum force acting between two charges placed at 1 m apart from each other?
[A] Ke2/2
[B] Ke
[C] Ke2
[D] Ke/4
[C] Ke2
Q.4: If ∮E.ds = 0 inside a surface, that means –
[A] Charge present inside the surface
[B] Uniform electric field inside the surface
[C] Discontinues field lines inside the surface
[D] there is no net charge present inside the surface
[D] there is no net charge present inside the surface
Q.5: What will be the value of electric field at the centre of the electric dipole :
[A] Zero
[B] Equal to the electric field due to one charge at centre
[C] Twice the electric field due to one charge at centre
[D] half the value of electric field due to one charge at centre
[C] Twice the electric field due to one charge at centre
Q.6: In the process of charging, the mass of the negatively charged body-
[A] Decreases
[B] Increases
[C] Remains Constant
[D] None of the above
[B] Increases
Q.7: Charge on a body is integral multiple of ±e . It is given by the law of-
[A] Conservation of charge
[B] Conservation of mass
[C] Conservation of energy
[D] Quantisation of charge
[D] Quantisation of charge
Q.8: Charge Q is kept in a sphere of 5 cm first than it is kept in a cube of side 5O cm. the outgoing flux will be-
[A] More in case of sphere
[B] More in case of cube
[C] Same in both case
[D] Information Incomplete
[C] Same in both case
Q.9: Electric field intensity due to a short dipole remains directly proportional to – (where, r is distance of observation point from centre of dipole.)
[A] r2
[B] r-2
[C] r3
[D] r-3
Q.10: On charging a neutral Balloon its size –
[A] Increases
[B] Decreases
[C] Remains same
[D] No relation between charge & size
Q.10: Electric field lines contracts lengthwise, It shows
[A] repulsion between same charges
[B] Attraction between apposite charges
[C] No relation between force & contraction.
[D] Electric field lines does not moves on straight path.