Equipotential planes are_______________?
(A) parallel to one another
(B) non parallel to one another
(C) intersecting
(D) circular
The metallic spheres A and B of radii 2m and 4m respectively carry the same charge 4 x 10 8C. If the spheres are connected by a copper wire_______________?
(A) charge will flow from A to B
(B) charge will flow from B to A
(C) no flow of charge will occur
(D) both a and b are possible
Two similar charges each of one coulomb placed in air one meter apart repel each other with a force______________?
(A) 9 x 109N
(B) 9.2 x 104N
(C) 9 x 109N
(D) 9 x 107N
A closed surface contains two equal and opposite charges. The net electric flux from the surface will be________________?
(A) negative
(B) positive
(C) zero
(D) data is insufficient
Electric intensity being a vector quantity always points_______________?
(A) along the direction of force experienced by a unit positive charge
(B) opposite to the direction of force experienced by a unit positive charge
(C) perpendicular to the direction of force experienced by a uit positive charge
(D) any of above
An electric charge at rest produces_______________?
(A) only a magnetic field
(B) only an electric field
(C) neither electric field nor magnetic field
(D) both electric and magnetic fields
The force per unit charge is know as__________________?
(A) electric flux
(B) electric intensity
(C) electric potential
(D) all of above are same
If metallic conductor is charged negatively then its weight______________?
(A) Remains same
(B) First increases then decreases
(C) Decreases then increases
(D) Increases for a while
If two charges are increased by two times then force_____________?
(A) Decreases 9 times
(B) Increases 9 times
(C) Increases 4 times
(D) Decreases 4 times
If mica sheet is placed between the plates of a capacitor the capacity_______________?
(A) increases
(B) decreases
(C) increases then decreases
(D) decreases then increases