STATE STYLE MOCK TEST

Marks :: Correct Answers :: Remarks ! Wrong Answers :: Ans Ans Ans Remarks ! Remarks ! Remarks !

Question : When a body is charged by induction,then the body 
becomes neutral 
does not lose any charge
loses whole of the chargeon it
loses part of the charge on it

Question : If a body is positively charged,then it has
excess of electrons 
excess of protons 
deficiency of electrons 
deficiency of neutrons 

Question :On charging by conduction,mass of a body may 
increase 
decrease 
increase or decrease 
none 

Question :An uncharged insulated conductor A is brought near a charged insulated conductor B 
the charge & potential of B,both remain constant 
both change 
the charge remains constant,but potential decreases 
the charge remains constant but potential increases 

Question : Two charges are placed a certain distance apart.A metallic sheet is placed between them.What will happen to the force between the charges?
increase 
decrease 
remain unchanged 
either (a) or (b) 

Question :Which of the following is best insulator ?
Carbon 
Paper 
Graphite 
Ebonite 

Question :The distinction between conductors,insulators and semiconductors is largely concerned with 
their ability to conduct current 
the type of crystal lattice 
binding energy of their electrons 
relative widths of their energy gaps 

Question :A cylindrical conductor is placed near another positively charged conductor.The net charge acquired by the cylindrical conductor will be 
positive only 
negative only 
zero 
either positive or negative 

Question :Two spheres A and B of exactly same mass are given equal positive and negative charges respectively.Their masses after charging 
remain unaffected 
mass of A > mass of B 
mass of A < mass of B 
nothing can be said 

Question :What happens when some charge is placed in a soap bubble? 
its radius decreases 
its radius increases 
the bubble collapses 
none of the above 

Question :Two charges are placed a certain distace apart in air. If a glass slab is introduced between them, the force between them will 
increases 
decreases 
reamins the same 
be zero 

Question :A postively charged rod id brought near an uncharged conductor. If the rod is then suddenly withdrawn,the charge left on the conductor will be 
positive 
negative 
zero 
not sure 

Question :The ratio of electric force between two electrons to two protons separated by the same distace in air is 
100 
106 
104 
none of the above 

Question :The dielectric constant of a metal is 
infinity
0
1 
none of the above 

Question :An electric field can deflect 
neutrons 
X-rays 
γ-rays 
α-rays 

Question :If an electron has an intial velocity in a direction different from that of an electric field,the path of the elctron is 
a straight line 
a circle 
an ellipse 
a parabola 

Question :If a charge is moving along the direction of coloumb's force of an elcetric field, 
work is done by the elcetric field 
energy is used from some outside source 
strength of field decreased 
energy of the system is decreased 

Question : A hollow sphere of charge does not have electric field at
outer point 
interior point 
beyond 2m 
beyond 100m 

Question :If one penetrateds a uniformly charged solid sphere,the elctric field E 
increases 
decreases 
is zero at all points 
remains same as at the surface 

Question : if one penetrates a uniformly charged spherical cloud,electric filed strength 
decreses directly as the distance from the centre 
increases directly as the distace from the centre 
remains constant 
none of the above 

Question :'Debye' is the unit of 
electric flux 
electric dipole moment 
eletric potential 
electric field intensity 

Question :Electric lines of force about a negative point charge are 
circular anticlockwise 
circular clockwise 
radial,inwards 
radial,outwards 

Question :An electric dipole is kept in a uniform electric field,it experiences 
a force and a torque 
a force,but no torque 
A torque but no force 
neither a force noe a torque 

Question :The electric potential at a point on the equatorial line of an electric dipole is 
directly proportional to distance 
inversely proportional to distance 
inversely proportional to square of the distance 
none of the above 

Question :The electric charge,in a uniform motion,produces  
electric field only 
magnetic field only 
both (a) and (b) 
neither (a) and (b) 

Question :Electric flux at a point in an electric field is  
positive 
negative 
zero 
none of these 

Question :Electric flux over a surface inan electric field may be  
positive 
negative 
zero 
all of the above 

Question :Positive electric flux indicates that electric lines of force are directed
outwards 
inwards 
outwards or inwards 
none of these 

Question :Negative electric flux indicates that electirc lines of force are directed 
outwards 
inwards 
outwards or inwards 
none of these 

Question :An eqipotential surface is that surface  
on which each and everypoint has the same potential 
which has negative potential 
which has positive potential 
which has zero potential 