Here we will provide you the 50+ MCQ Questions of Electric Charges and Fields for NEET-UG. Electric Charges and Fields is the chapter 1 in Class XII or Class 12 Physics NCERT Unit Electric Charges and Fields NEET (conducted by NTA) is based on the NCERT book.
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These 50+ MCQ questions are selected by the experts of studyrate.in and these are more difficult questions, which will help you to better understand Electric Charges and Fields NEET MCQ Questions with Answers.
Electric Charges and Fields NEET MCQ
Two identical point charges Q are kept 1m apart in air. A third point charge q is placed on the line joining the two charges such that the system remains in equilibrium. The value of q in terms of Q and the distance between the charges is:
a) q = Q/2
b) q = Q
c) q = 2Q
d) q = Q/4
The electric field due to a point charge q at a distance r from it is given by E. The electric field due to two such charges each of magnitude q placed at a distance r/2 from each other is:
a) E/4
b) E/2
c) E
d) 2E
Two identical point charges Q are placed at a distance d apart. The electric potential at a point P on the perpendicular bisector of the line joining the two charges is V. If the distance of P from the line joining the two charges is r, then the value of V at a point Q on the line joining the two charges such that PQ = r is:
a) V/2
b) V/4
c) V
d) 2V
A point charge q is placed at the centre of a cube of side L. The electric flux passing through one of its faces is:
a) q/6ε₀
b) q/4ε₀
c) q/2ε₀
d) q/ε₀
A charge Q is enclosed by a metallic sphere of radius r. The electric field at a distance r/2 from the centre of the sphere is:
a) 0
b) Q/4πε₀r²
c) Q/2πε₀r²
d) Q/πε₀r²
Two point charges of equal magnitudes and opposite signs are separated by a distance of 2d. A third point charge of the same magnitude as the first two charges but opposite in sign is placed at a distance d from each of the charges. The net force on the third charge is:
a) zero
b) towards the charge with which it has the same sign
c) towards the charge with which it has the opposite sign
d) in a direction perpendicular to the line joining the two charges
A small object carrying a charge q is placed at the midpoint of a line joining two charges +Q and -Q separated by a distance d. If the object is displaced slightly perpendicular to the line, it will experience:
a) a force towards +Q
b) a force towards -Q
c) no force
d) a force towards the direction of displacement
A charge Q is uniformly distributed over a thin spherical shell of radius R. An identical spherical shell of radius 2R, but uncharged, is brought in contact with the first shell and then removed. The final potential at the centre of the first shell is:
a) Q/4πε₀R
b) Q/8πε₀R
c) Q/16πε₀R
d) Q/32πε₀R
A point charge q is placed at the centre of a cube of side L. The electric potential at a point P on one of its faces, at a distance L/2 from the centre, is:
a) q/4πε₀L
b) q/8πε₀L
c) q/16πε₀L
d) q/32πε₀L
Three charges +q, -q, and +q are placed at the vertices of an equilateral triangle of side ‘a’. The electric potential at the centroid of the triangle is:
a) zero
b) kq/a
c) kq/2a
d) 2kq/a
Two point charges Q and q are placed at a distance d apart. A third charge q’ is placed on the line joining Q and q, such that it experiences no net force. The ratio of q and q’ is:
a) q/q’ = 1/3
b) q/q’ = 1/2
c) q/q’ = 2
d) q/q’ = 3
A positive charge q is placed at a point equidistant from two positive charges, each of magnitude Q. The net force on the charge q is:
a) zero
b) directed towards one of the Q charges
c) directed towards the other Q charge
d) directed perpendicular to the line joining the two Q charges
A charge +Q is placed at the centre of a cube of side L. The electric potential at a point on one of its faces, at a distance L/2 from the centre, is:
a) kQ/4L
b) kQ/8L
c) kQ/16L
d) kQ/32L
A point charge q is placed at the centre of a sphere of radius R. The electric flux through a small sphere of radius r < R, concentric with the larger sphere, is:
a) q/ε₀
b) qR²/ε₀r²
c) q/ε₀r²
d) qR/ε₀r²
A hollow sphere of radius R is charged with a total charge Q. The electric potential at a point P, at a distance R/2 from the centre of the sphere, is:
a) kQ/R
b) kQ/2R
c) kQ/4R
d) kQ/8R
Two point charges of magnitude Q are placed at a distance d apart. A third charge q is placed on the line joining the two charges, such that it experiences a net force of zero. The ratio of the distances of q from the two charges is:
a) d/2
b) 2d/3
c) d/3
d) d/4
A point charge q is placed at the centre of an uncharged conducting spherical shell of radius R. The potential difference between the centre and the surface of the shell is:
a) kq/R
b) kq/2R
c) kq/4πε₀R
d) zero
A point charge q is placed at a distance x from an infinite conducting plane. The electric potential at a point on the other side of the plane, at a distance 2x from it, is:
a) kq/x
b) kq/2x
c) -kq/2x
d) -kq/x
Two identical point charges +q are placed a distance d apart. A third charge -q is placed on the perpendicular bisector of the line joining the two charges, such that it experiences a net force of zero. The distance of the third charge from each of the other two charges is:
a) d/2
b) d/3
c) d/4
d) d/√2
Two charges Q and q are placed at a distance d apart. A third charge q’ is placed on the line joining Q and q, such that it experiences no net force. If the distance of q’ from Q is x, then the distance of q’ from q is:
a) x
b) (d-x)
c) Qx/(Q+q)
d) qx/(Q+q)
A thin ring of radius R carries a total charge Q. The electric field at the centre of the ring is:
a) kQ/R²
b) kQ/2R²
c) kQ/4πε₀R²
d) zero
A conducting sphere of radius R carries a total charge Q. The electric field at a point inside the sphere, at a distance r < R from the centre, is:
a) zero
b) kQ/4πε₀R²
c) kQ/4πε₀r²
d) kQ/4πε₀R³(r-R)
Two identical point charges +q are placed at a distance d apart. A third charge -q is placed on the line joining the two charges, such that it experiences no net force. The distance of the third charge from each of the other two charges is:
a) d/2
b) d/3
c) d/4
d) d/√2
A point charge q is placed at the centre of a conducting sphere of radius R. The charge on the surface of the sphere is:
a) zero
b) q
c) q/4πε₀R²
d) qR/4πε₀
A conducting sphere of radius R is charged with a total charge Q. The electric field at a point P, at a distance R/2 from the centre of the sphere, is:
a) kQ/R²
b) kQ/2R²
c) kQ/4πε₀R²
d) zero
Two identical point charges +q are placed at a distance d apart. A third charge -q is placed on the perpendicular bisector of the line joining the two charges, such that it experiences no net force. The distance of the third charge from each of the other two charges is:
a) d/2
b) d/3
c) d/4
d) d/√2
Two point charges of magnitude Q and q are placed at a distance d apart. The electric field at a point P, at a distance R from the midpoint of the line joining the two charges, is proportional to:
a) Qq
b) Q²/q²
c) q²/Q²
d) Qq/R²
A point charge q is placed at a distance x from an infinite conducting plane. The electric field at a point on the other side of the plane, at a distance 2x from it, is:
a) kq/x²
b) kq/2x²
c) -kq/2x²
d) -kq/x²
A charge q is placed at one of the corners of a square. The electric field at the centre of the square is:
a) kq/a²
b) kq/2a²
c) kq/4a²
d) zero
Two charges of magnitude q are placed on the x-axis at x = a and x = -a. The electric potential at the origin is:
a) 0
b) kq/a
c) kq/2a
d) ∞
An electric dipole consists of two point charges +q and -q, separated by a distance 2a. The electric field at a point P on the axis of the dipole, at a distance r from the centre, is proportional to:
a) q/r³
b) q/r²
c) q/r
d) q/r⁴
Two charges Q and q are placed at a distance d apart. A third charge q’ is placed on the line joining Q and q, such that it experiences no net force. The value of q’ is:
a) Qd/(Q+q)
b) qd/(Q+q)
c) Qq/d
d) Qq/(Q+q)
We hope there NEET MCQ of Class 12 Electric Charges and Fields will help you to score an excellent rank in NEET-UG. If you have any queries feel free to write in the comments section. We at Study Rate are always ready to serve our students.
