NCERT Physics Class 12 Exemplar Chapter 1 Electric Charges and Fields Part 3
Download PDF of This Page (Size: 170K) ↧
Q.5 Figure shows electric field lines in which an electric dipole p is placed as shown. Which of the following statements is correct?

Electric Field Lines
Tittle: Image of The Electric Field Lines
-
The dipole will not experience any force.
-
The dipole will experience a force towards right.
-
The dipole will experience a force towards left.
-
The dipole will experience a force upwards.
Answer: C
Q.6 A point charge , is placed at a distance from an isolated conducting plane. The field at a point on the other side of the plane is
-
Directed perpendicular to the plane and away from the plane.
-
Directed perpendicular to the plane but towards the plane.
-
Directed radially away from the point charge.
-
Directed radially towards the point charge.
Answer: A
Q.7 A hemisphere is uniformly charged positively. The electric field at a point on a diameter away from the centre is directed
-
Perpendicular to the diameter
-
Parallel to the diameter
-
At an angle tilted towards the diameter
-
At an angle tilted away from the diameter.
Answer: A
One or More than One Correct Answer Type
Q.8 If over a surface, then
-
The electric field inside the surface and on it is zero.
-
The electric field inside the surface is necessarily uniform.
-
The number of flux lines entering the surface must be equal to the number of flux lines leaving it.
-
All charges must necessarily be outside the surface.
Answer: (C), (D)