Question 1 :
Negative electric flux indicates that electric lines of force are directed
Question 2 :
State whether true or false :Electric flux through a closed surface is equal to total flux due to all the charges enclosed within that surface only.
Question 3 :
On doubling the charge on one particle while leaving all other factors the same will:<br/>
Question 4 :
In a region of space, the electric field is given by $\vec {E} = 8\hat {j} + 4\hat {j} + 3\hat {k}$. The electric flux through a surface of area of $100$ units in $x - y$ plane is?
Question 5 :
If a charge on the body is 1 nC, then how many electrons are present on the body?
Question 7 :
When a glass rod is rubbed with silk cloth, it acquires positive charge because:
Question 10 : <p class="wysiwyg-text-align-left">A charge $Q\  \mu C$ is placed at the centre of a cube. The flux coming out from any surface will be :<br/></p>
Question 11 :
Two electric dipoles of dipole moment $2 \space cm$ and $4 \space cm$ respectively are kept inside a cube of side $'a' \space m$. Total electric flux linked with the cube is (in SI units)
Question 13 :
12 positive charges of magnitude q are placed on a circle of radius R in a manner that they are equallyspaced. A charge +Q is placed at the centre. If one of the charges q is removed, then the force on Q is
Question 14 :
the number of electric field lines emerged out of 1 C charge is
Question 15 :
An electric dipole is kept in a non-uniform electric field. It experiences
Question 16 :
A body is brought near to a negatively charged gold leaf electroscope. If the divergence of leaves increases. What is the nature of charge on the body?
Question 17 :
State whether the following statements are True or False.<br/>If E=0, at all points of a closed surface, The electric flux through the surface is zero.
Question 18 :
The ratio of electric force between two electrons to two protons separated by the same distance in air is
Question 19 :
A test charge q is located 1 meter from a much larger and stationary charge Q. While at this location, the test charge q, experiences a force of F from the stationary charge Q. The test charge is then moved to a new location 2 meters from Q. What force will the test charge q experience from the stationary charge Q at the new location?
Question 20 :
A hollow conducting sphere of charge does not have electric field at
Question 24 :
A negative charge is placed at the midpoint between two fixed equal positive charges, separated by a distance $2d$. If the negative charge is given a small displacement $x (x << d)$ perpendicular to the line joining the positive charges, how<br/>the force (F) developed on it will approximately depend on $x$ ?
Question 27 :
If $10^{20}$ <span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small">electrons are removed from a conductor. The nature and magnitude of the charge developed on it is :
Question 28 :
What will be the nature of charge on the metal paper clip of electroscope when a positively charged body is brought in contact with it?
Question 30 :
<span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small">Another unit for the quantity having the unit $\dfrac{C^2 }{Nm^2}$ is:
Question 32 :
A drop of oil of density $\rho$ and radius $r$ carries a charge $q$ when placed in an electric field $E$, it moves upwards with a velocity $v$. If ${\rho}_{0}$ is the density of air, $\eta $ be the viscosity of the air, then which of the following force is directed upwards?
Question 33 :
State True or False :Human body is a good conductor of electricity.
Question 34 :
A charge is kept at the centre of a shell. Shell has charge Q uniformally distibuted over its surface and radius R. The force on the central charge due to the shell is :
Question 35 :
If the electric force between two unknown charges is attractive, identify which of the following statement must be true?<br/>
Question 36 :
Two conducting charged spheres $X$ and $Y$ having unequal charges are connected by the wire. Which of the following is true?
Question 40 :
State whether true or false.<br/>Metals as compared to non-metals are generally bad conductors of electricity.<br/>
Question 44 :
If $\oint _{ s }^{  }{ \overrightarrow { E } .\overrightarrow { d } s } =0$ over surface, then
Question 45 :
A gold leaf electroscope is given a positive charge so that its leaves diverge. How is the divergence of leaves affected, when a positively charged rod is brought near its disc?
Question 49 :
Complete the following statements with an appropriate word /term be filled in the blank space(s).<br/>The force of attraction or repulsion between two charges is given by ......................<br/>
Question 50 :
In an external electric field, the field line of force represent:<br/>
