Recently Active Electricity And Magnetism Questions

plz can someone explain me how the charges are distributed in conductors placed side by side . i know i am going wrong somewhere but yet not able to understand . sample question 3 conductors- A B C +Q 0 -2Q Find final charge ...

*Image* find the equivalent capacitance between 'a' and 'b' ..they are obviously connected to a battery. ** E of the battery isn't given. please help me out with this ques friends. my sir did this using kirchoffs loop law..i ...

A spiral of two turns with inner radius R and outer radius 2R is placed as shown in figure. Find magnetic field at the centre of spiral. *Image* ...

Q1. In a uniform magnetic field of induction B, a wire in the form of a semicircle of radius r rotates about the diameter of the circle with an angular frequency ω. The axis of rotation is perpendicular to the field. If the ...

Q: Two fixed charges " +q " and " -q' " are shown as in the figure. A field line emerges from +q charge at an angle ' α '. Find the angle at which it terminates at the other charge. *Image* Note: | +q | ≠| -q' | Please pos ...

I`m having problems understanding LC oscillations........Can someone please explain????hcverma n resnick halliday is not helping me..... ...

why a accelarated charged body produce electromagnetic radiation??????????? ...

2 concentric thin meatallic shells having radi R and 2R carry net charges Q and 2Q resp. Draw the charge distribution. *Image* ...

i was good enough in physics upto the mechanics part... but now im facing a lot of problems in electrostatics from the electric potential part and those questions like when 2/more charged conducting plates are kept facing eac ...

Subhomoy da you know this is directed towards you. So you please explain what the method of image charges is and how it can be used to solve problems. Everyone and anyone else is also invited to take part! ...

Q. A particle of mass m having negative charge q moves along an ellipse around a fixed positive charge Q so that its maximum and minimum distances from fixed charge are equal to r1 and r2 respectively.Calculate the angular mo ...

*Image* hints and helps only ... ...

Consider these two explanations for this result, energy stored in a capacitor = 1/2 CV2 ! Explanation 1: Suppose the plates of capacitor of surface area A and charged with charges +Q and -Q are almost in contact. Now, the pla ...

Q. A metal sphere of radius R is charged to a potential V. a) Find the electrostatic energy stored in the electric field within the concentric sphere of radius 2R. b) Show that the electrostatic field energy stored outside th ...

Q51(HCV). A block of mass m and having charge q is placed on a smooth horizontal table and is connected to a wall through an unstressed spring of spring constant k as shown in the figure. A horizontal electric field E paralle ...

the dimensional formula M L^2 Q^-1 T^-1corresponds to? (A) magnetic flux (B)electric flux (C) energy density in e.m waves (D) inductance ...

Here's the doubt When a fully charged capacitor is connected across an uncharged one, is total energy of the system of the two capacitors conserved? If no then where and how is it lost? Thanks for your replies. ...

IF different batteries of different emf are joined in parallel...then what is the equivalent emf? suppose 4 batteries of emf=1,2,3 and 4 respectively are joined in parallel then what is the equivalent emf? ...

a conducting wire moves normally in a magnetic field with a uniform speed V..what will be its speed after it gets out of the field?? ...

3 parallel metallic plates each of area A. charges q1,q2,q3 are given to them find the resulting charge distribution on the six surfaces *Image* i dont know how to approach please help ...

A clock face has charges -q,-2q,-3q,......-12q fixed at corresponding numerals on the dial .The clock hand do not disturb the net electric field due to point charges. At what time does the hour hand point the direction of net ...

1. A particle moves in a region having uniform magnetic field and a parallel, uniform electric field. At some instant, the velocity of the particle is perpendicular to the field direction. The path of the particle will be a) ...

a rod AB with A(a/2,0) and B(a/2+L,0) and another rod CD with C(-a/2,0) and D(-a/2-L,0) are placed on the x axis.Find the electric force between them ...

*Image* How to approach these problems? [7] ...

Q. The plates of a capacitor are 2 cm apart. An electron-proton pair is released somwhere in the gap between the plates and it is found that the proton reaches the negative plate at the same time as the electron reaches the p ...

Q: A cone made of insulating material has a charge Q spread uniformly over it's sloping surface. Calculate the work done in bringing a small positive test charge ' q ' from infinity to the apex of the cone. The cone has a slo ...

Please show me the charges appearing on each faces. A dilelectric is kept inside two conductor as shown in figure. *Image* ...

a region in space contains charge which is distributed spherically such that the volume charge density p. p=a for r≤R/2 p=2a(1-r/R) for R/2≤r≤R p=0 for r≥R find the value of a in terms Q and R,where Q is the total cha ...

From a conduction ring of radius R which carries a charge Q (uniformly distributed) along its periphery a small length dl is cut off. The electric field at the center due to the remaining part is ? ...

a point charge q= -8 nC is located at the origin. Find the electric field vector at the point x=1.2m & y= -1.6m? ...