(1) Electric field at the surface point of charge conductor is:-
(a) ε₀ σ
(b) σ/ε₀
(c) Zero
(d) σ/2ε₀
Ans:- (b)
Electrostatics objective questions
इस पोस्ट में क्या हैं
(2) Electric field at the inside point of charge conductor is:-
(a) ε₀ σ
(b) σ/ε₀
(c) Zero
(d) ε₀/2
Ans:- (c)
3. The electric field intensity at the surface of charge conductor is :-
(a) Zero
(b) Perpendicular to the surface
(c) Tangential to the surface
(d) at 450 to surface
Ans:-(b)
Exam most important objective
4. Electric field and Potential is inside the charged conductor is respectively:-
(a) constant, zero
(b) zero, constant
(c) infinite, variable
(d) variable, infinity
Ans:-(b)
5. Electric field intensity due to infinitely charge conducting sheet at near point is:-
(a) ε₀ σ
(b) σ/ε₀
(c) σ/2ε₀
(d) (1/2)ε₀ σ
Ans:-(c)
Bihar board objective
6. Work required for the moving of 2 C charges is 20J from one point to other, then potential difference between the point is :-
(a) 10
(b) 20
(c) 5
(d) 2
Ans:-(a)
Bihar board vvi question
7. Which of the following is a vector quantity?
(a) Charge
(b) Capacitance
(c) Electric field
(d) Electric current
Ans:-(c)
8. What is the work done due to rotation of electric-dipole in external electric field?
(a) W = pE(1 – cosθ)
(b) W = pE tanθ
(c) W = pE secθ
(d) None of these
Ans:-(a)
Bihar board objective pdf
9. Gravitational force and electric force between two electrons separated at some distance are Fg and Fe respectively, then Fg/Fe is:-
(a) 9.8
(b) 109
(c) 1042
(d) 10-42
Ans:-(d)
10. Potential energy of an electric dipole in an external electric field is maximum, when angle between electric dipole and electric field is:-
(a) 0
(b) π/2 rad
(c) π/4 rad
(d) π rad
Ans:-(d)
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