Question 1 :
Two charges are separated by a distance d. If the distance between them is doubled, how does the electric potential between them change?
Question 3 :
A bullet of mass 2 g is having a charge of 2 $\mu$ C. Through what potential difference must it be accelerated, starting from rest, to acquire a speed of 10 m/s ?  
Question 4 :
<span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small"></span></span><p class="wysiwyg-text-align-left">A point positive charge of Q' unit is moved round another positive charge of Q unit on a circular path. If the radius of the circle is r, the work done on the charge Q' in making one complete revolution is:</p>
Question 5 :
Eight identical spherical mercury drops charged to a potential of 20 v each are coalesced into a single spherical drop:
Question 8 :
The kinetic energy of an electron, which is accelerated in the potential difference of $100\ V$, is
Question 9 :
Work done in moving an electric charge <i>q </i>in an electric field does not depend upon :
Question 10 :
When moving electron comes closer to other stationary electron, then its kinetic energy and potential energy respectively _____ and _____.
Question 11 :
If two similarly charged particles are brought near one another, the potential energy of the system will :<br/>
Question 12 :
In an electrical circuit, which of the following quantities is analogous to temperature?<br>
Question 13 :
The work done in moving a single positive charge from infinity to a point is called ..... at that point
Question 16 :
If $4 \times 10^{20}eV$ is required to move a charge of $0.25\ C$ between two points, the potential difference between these two points is:
Question 18 :
What is the electric potential at a distance of 9 cm from 3 nC?
Question 20 :
<span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small"></span></span><p class="wysiwyg-text-align-left">There is 10 units of charge at the centre of a circle of radius 10m. The work done in moving 1 unit of charge around the circle once is:</p>
Question 21 :
The intensity of electric field E due to charge Q at distance r.<br>
Question 22 :
The work done is carrying a charge q once round a circle of radius r with a charge q at the center is?
Question 23 :
Two charges $+q$ and $-q$ are kept apart. Then at any point on the right bisector of line joining the two charges
Question 24 :
To bring a unit positive charge from infinity to a point in an electric field, some work has to done, which is called:<br/>
Question 25 :
The electric volt is a measure of electrical potential. Identify which of the following can be defined as a volt.
Question 27 :
If a unit charge is taken from one point to another over an equipotential surface, then :
Question 29 :
<span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small"></span></span><p class="wysiwyg-text-align-left">The two surfaces A and B are at the same potential and separated by a distance $r$. The work done in carrying a charged particle ($q$) from A to B will be:</p>
Question 30 :
The potential energy of a proton is $3.2\times 10^{-18}J$ at a particular point. The electric potential at this point is:<div>(Given charge on a proton is $1.6 \times 10^{-19}\ C$)</div>
Question 32 :
<span>The work done to move a charge along an equipotential from A to B</span>
Question 33 :
Which of the following statement is true about the relation between electric field and potential?
Question 34 :
The electric potential at a point $(x,0,0)$ is given by$V=\left[\dfrac{1000}{\chi }+\dfrac{1500}{\chi }+\dfrac{500}{\chi }^3\right]$<br/>then the electric field at $x =1\, m$ is (in volt/m)
Question 35 :
<span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small"></span></span><p class="wysiwyg-text-align-left">A charge $q$ of mass $m$ is released with a velocity $1\times 10^{6}\ m/s$ from a large distance from a fixed positive charge $Q$. The closest distance of approach is:</p>
Question 36 :
The charges $Q$, $+q$ and $+q$ are placed at the vertices of an equilateral triangle of side $l$. If the net electrostatic energy of the system is zero, then $Q$ is equal to :