Question 2 :
The intensity of electric field E due to charge Q at distance r.<br>

Question 3 :
The electric volt is a measure of electrical potential. Identify which of the following can be defined as a volt.

Question 4 :
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 6 :
The work done is carrying a charge q once round a circle of radius r with a charge q at the center is?

Question 8 :
The work done in moving a single positive charge from infinity to a point is called ..... at that point

Question 9 :
A bullet of mass 2 g is having a charge of 2 $\mu$ C. Through what potential&#160;difference&#160;must it be&#160;accelerated, starting from rest, to acquire a speed of 10 m/s ?&#160;&#160;

Question 10 :
If a charge is shifted from a high potential region to low potential region, the electrical potential energy

Question 11 :
The potential at a point due to a charge of 5 x ${ 10 }^{ -7 }$ C&#160;<span>located 10 cm away is:</span>

Question 12 :
If a positive charge is shifted from a low potential region to a high potential region, the electric potential energy:

Question 14 :
The electric potential at the apex p of regular pyramid of length '$l$' due to system of charges q, -2q, and 3q is

Question 15 :
Two tiny spheres carrying charges $1.5 \mu C$&#160;and $2.5 \mu C$&#160;are located at $30 cm$ apart. The potential at the mid-point of the line joining the two charges in a plane normal to the line and passing through the mid-point is

Question 16 :
Match the following two columns:<br><table class="wysiwyg-table"><tbody><tr><td></td><td>Column I</td><td></td><td>Column II</td></tr><tr><td>A.</td><td>Electrical resistance</td><td>$1.$</td><td>$[ML^{3}T^{-3}A^{-2}]$</td></tr><tr><td>B.</td><td>Electrical potential</td><td>$2.$</td><td>$[ML^{2}T^{-3}A^{-2}]$</td></tr><tr><td>C.</td><td>Specific resistance</td><td>$3.$</td><td>$[ML^{2}T^{-3}A^{-1}]$</td></tr><tr><td>D.</td><td>Specific conductance</td><td>$4.$</td><td>None of these</td></tr></tbody></table>

Question 17 :
Three charges $-2q, q,q$ are placed on the vertices of an equilateral triangle. At the incentre of the triangle,

Question 18 :
Two identical spheres, one positively charged and the other negatively charged are held d cm apart. If the magnitude of the charges on the two spheres is equal, find the electric potential at a point midway on the line joining the centres of the two spheres.

Question 19 :
Two point charges $2C$ and $-1C$ are placed at $x=0$ and $x=6$ respectively. The potential will be zero at points :

Question 20 :
The electric potential $V$ at any point $P(x,y,z) $ in space is given by$V=4x^2\ V$. The electric field at the point $(1m,2m)$ is: