Question 1 :
An electric dipole is kept in a non-uniform electric field. It experiences

Question 2 :
<span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small"><p class="wysiwyg-text-align-left">Two unlike charges attract each other with a force of 10N. If the distance between them is doubled, the force between them is :</p>

Question 4 :
State whether the given statement is True or False :Conductors when charged transfer all charges to the entire surface of the conductor.&#160;

Question 6 :
An electron of mass m. initially at rest takes time $t_1$ to move a distances in a uniform electric field in the same field environment, a proton of mass mp initially at rest takes time $t_2$ to move the same distance (in the opposite direction). Ignoring gravity, the ratio $t_2/t_1$ is<br>

Question 7 :
When a negative charge is taken at a height from earth's surface, then its potential energy:

Question 9 :
State whether true or false.<br/>Metals as compared to non-metals are generally bad conductors of electricity.<br/>

Question 10 :
Uniform electric field of intensity 5 volt/m acts parallel to x axis. A charge of 2C is moved from to A (1,1), to B (2,1) and finally to D(3,C) in this field.Work done in this process is :

Question 12 :
Ten positively charged particles are kept fixed on the $x-$ axis at points $x=10\ cm, 20\ cm, 30\ cm, . . . .,100\ cm$. The first particle has a charge $1.0\times {10}^{-8}\ C$, the second $8\times {10}^{-8}\ C$, the third $27\times {10}^{-8}\ C$ and so on. The tenth particle has a charge $1000\times {10}^{-8}\ C$. Find the magnitude of the electric force acting on a $1\ C$ charge placed at the origin.

Question 13 :
A charge $Q$ is placed at the center of a square. If electric field intensity due to the charge at the corners of the square is $ E_1 $ and the intensity at the mid point of the side square is $ E_2 $ then the ration of $&#160;\dfrac { E_ 1 }{ E_ 2 }$ will be

Question 14 :
How does the charge densities of conductors vary on an elliptical shaped conductor?

Question 15 :
Compare how the magnitude of the electric field decreases with distance from a uniform charged sphere and a uniform charged wire.

Question 16 :
The total electric flux through a closed surface is equal to

Question 17 :
Charges $Q_1$ and $Q_2$ lie inside and outside respectively of a closed surface S. Let E be the field at any point on S and $\phi$ be the flux of E over S.

Question 18 :
The value of distance $r_m$, inside the ball at which electric field intensity maximum is given by-

Question 19 :
Charges $Q_1$ and $Q_2$ lie inside and outside respectively of a closed surface S. Let E be the field at any point on S and $\psi$ be the flux of E over S.

Question 20 :
Using general logic for electric field, the flux of&#160;$\overrightarrow{g}$ through any closed surface is given by :