Question 1 :
State whether true or false.<br/>Metals as compared to non-metals are generally bad conductors of electricity.<br/>
Question 2 :
Find out on which of following factors does strength of the force between charged particles depend.<br/>
Question 3 :
State True or False :Human body is a good conductor of electricity.
Question 4 :
What happens when a charged balloon is placed near another balloon of the same charge?
Question 6 :
the number of electric field lines emerged out of 1 C charge is
Question 7 :
What happens when two straws are individually rubbed with separate sheets of paper and are brought near to each other?
Question 8 :
<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 9 :
A charge $$q_1$$ exerts a force of $$45N$$ on a charge of $$q_{2}=10^{-5} C$$ located at a point $$0.2m$$ from $$q_{1}$$. The magnitude of $$q_{1}$$ is
Question 10 :
A glass rod rubbed with silk is brought near the fur rubbed with an ebonite rod. What will be your observation between them? <br>
Question 11 :
Calculate the magnitude of the force between two electrons which are separated by a distance of $$10^{-10}m$$. If the magnitude of the charge is $$10^{-19}C$$ and Coulomb constant is $$10^{10}N\;m^{2}/C^{2}$$.
Question 12 :
A positive charge $$q$$ is placed in a spherical cavity made in a positively charged sphere. The centers of sphere and cavity are displaced by a small distance $$\vec {l}$$. Force on charge $$q$$ is:<br>
Question 13 :
The charges from one body can be Transferred to another body but the total charge of a system ...........<br>
Question 14 :
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 15 :
<span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small"><p class="wysiwyg-text-align-left">A force ‘F’ is acting between two charges in air. If the space between them be completely filled with a medium $$K=4$$, the force will be :</p>
Question 16 :
Two spheres of radii 2 cm and 3 cm have equal surface charge density. Calculate the ratio of their charges.
Question 17 :
A gold leaf electroscope is given a positive charge so that its leaves diverge. How is the divergence of leaves affected, when an uncharged rod is brought near its disc ?
Question 19 :
Two equations are given below:<br>A) $$\oint \overline {E} .d\overline {A} = \dfrac {Q}{E_{0}}$$ B) $$\oint \overline {B} . d\overline {A} = 0$$
Question 20 :
Eight dipoles of charges of magnitude $$e$$ are placed inside a cube. The total electric flux coming out of the cube will be