Electrostatics Definition and 663 Threads

In proving \nabla \times \vec{E} = \vec{0} for electrostatic fields, Griffiths switches directly from the equation \iint_{\mathcal{S}}(\nabla \times \vec{E})\cdot d\vec{a} =0 To the conclusion \nabla \times \vec{E} = \vec{0}. As for Gauss's theorem, I am wondering if there is a more...

can anyone suggest me books on electrostatics and electromagnetism at a graduate level as iam preparing for indian institute of technology (iit). it would be a great help for me.

1. When a piece of cellulose acetate (transparency) is rubbed by stroking it for about 10 to 20 times in one direction and brought towards a piece of rubbed polythene strip, i. state what happens, and ii. explain the observation. 2. Before rubbing a polythene strip with a soft cloth...

hi. i want to ask one problem about electrostaics. i will be very thankful to u if u post reply about this question. Suppose we have one moving electron ,approaching towards a fixed electron. If they 1mm apart when the moving electron has the velocity of 1000cm/s. How far will be the...

This is my understanding of induction: If a negatively charged rod is brought near (but not touching) a neutral electroscope, the positive charges will move towards the rod, and the leaves will become negatively charged and repel. If grounded, electrons will exit the electroscope, and the...

potential = 0 particle of mass m charge q is projected with kinetic energy K at a nucleus mass M charge Q that is at rest. it is shot with 'perfect aim' (along the x axis). find the distance x to the nucleus when dx/dt of particle is zero. i know that F = dK/dt = cqQ/x^2 where c =...

Two charges, one -q and one +q are located at x=-a and x=+a, respectively. Use a spreadsheet to plot the electric field along the x asix. Part of this problem is choosing a reasonable range for the plot. How do I go about doing this?

I'm stuck on a Electrostatic problem which I just don't seem to get. The left-hand sphere has a positive charge Q and the right-hand sphere has a negative charge -Q. Charge is distibuted uniformly over each of two spherical volumes with radius . One sphere of charge is centered at the origin...

Two small spheres of mass m are suspended from strings of length L that are connected at a common point. One sphere has charge Q, the other has 2Q. The strings make angles (theta1) and (theta2) with the vertical. (a) How are theta1 and theta2 related? (b) Assume theta1 and theta2 are...

Hi... This problem is not an uncommon one and you might easily encounter it in any book that has challenging problems on this subject. I am throwing it here for newbies to Electrostatics who would like to try their hand at solving a puzzler... If a point charge +q is placed at y = 0 and an...

we meet again .. here ,i have a question about electrostaatics... in a particular experiment, a high voltage is created by charging an isolated metal sphere,the sphere has diameter 42 cm and any charge on its surface may be considered as if it were concentrated at its centre. The air...

Two conducting spheres (of the same size), one negatively charged, one positively charged are at a finite distance apart. Magnitude of neg charged sphere < pos charged sphere. When the spheres are brought together and touched, and brought back to initial distance, what is the net force...

Wow, it's been a long time since I've done any physics, but my sister asked me for help on a question and I am stumped. The problem is: What I remember is since the two charges have different signs, the third charge must be placed outside of the other two. It cannot lie in-between the...