Recently Active Electricity And Magnetism Questions

*Image* d question is to find d equivalence capacitance b/w a nd z. by symmetry charge on red capacitors will be same ( let q1) , similarly charge on green capacitors will also be same( let q2) . i have a doubt whether d char ...

In a region the magnetic field is B=Bo(1+x/l). A square loop of side l through which a current i flows is placed in the region. What is the net magnetic force experienced by the loop ? ...

*Image* infinite square brackets have been made by infinite wires .between each junction ,the resistance is r .find equivalent resistance between points A AND B ...

two metal strips, each of length l are clamped parallel to each other on a horizontal floor with a separation b between them. A wire of mass m lies on them perpendicularly a s shown in the figure. A vertically upward magnetic ...

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*Image* the strip is metallic n veryy thin n infinitely long plz use amperes law current though the plate is i........ the wholk ething is in 2D plane... PLZ PLZ SOLVE BY AMPERES LAW!!] ...

FIND D EQUIVALENCE RESISTANCE B/W D TERMINALS OF D CELL *Image* ...

3.290 A metal disc of radius a=25cm rotates with a constant angular velocity ω=130 rad/s about its axis. Find the potential difference between the rim and the centre of the disc if the external magnetic field is absent ...

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Find the emf induced across the ends P and Q of the conducting circular loop moving with a velocity (v) in the given magnetic region which has uniform magnetic field (B) directed into the plane of the screen!! *Image* ...

Ques1) *Image* An infinite wire having charge denisty λ passes through one edge of the cube having edge length ' l ' .The wire is just inside the cube. Find the (a)Total flux passin through the cube. (b) Flux passing through ...

A point charge q is placed at origin. Calculate the electric flux through the open hemispherical surface : (x-a) 2 + y2 +z 2 = a 2 , x ≥ a. ...

a capacitor wid charge Q is attached tpo anoder capacitir of same capacitence C through a resistor of R.....find the charge on d oder capacitor as a fucntion of timee..:) ...

A thin disc or radius R has charge Q distributed uniformly on its surface. The disc is rotated about one of its diametric axis with angular velocity w in a uniform magnetic field of magnitude B directed inward into the plane ...

Paragraph Two long parallel wires, each of radius 'a' whose axis are at a distance 'd' apart carry equal currents in opposite direction. (In all the calculations, flux within the wire is to be neglected) *Image* Q1. The self ...

*Image* A highly expected question made by me with a GREAT mind The figure shows two capacitors of capacitance C and charge Q1 and Q2 respectively as shown in the figure.An uniform electric field E exists b/w the plates of th ...

hey guys plz post the most useful methods to solve resistros n capacitor problem 1st one delta to star..to study chek the link http://en.wikipedia.org/wiki/Y-Δ_transform keep posting the methods ...

find minimum no of charges to be embedded in walls of a cube for the stable equilibrium of a charge in the centre of cube ( i want ans from all of targetiitians plz ) all charges are of same sign ...

1) Of the charge Q on a tiny sphere, a fraction @ is to be transferred to a second , nearby sphere. The spheres can be treated as a particle. What value of @ maximizes the mag F of the electrostatic force b/w the two spheres? ...

a difficult one seems to be!!!! in a certain experiment to measure the ratio of charge & mass of elementary particles, a surprising result was obtained in which two particlesmoved in such a way that distance btw them remains ...

Two pitch balls are charged by rubbing against each other. They are suspended from a horizontal rod through two strings of length 20cm each, the separation b/w the suspension point being 5cm. In equilibrium, the separation b/ ...

*Image* plz tell the method u used also :) ...

sum1 solve it..or give hints... ...

A large conduction plate has surface charge density = 1*10-4C/m2. Find the electrostatic potential energy stored in a cubical volume pf edge 1.0 cm in front of the plate... ...

*Image* the plare area is A.....dielectric constant is K released from rest wid a l;ength a inside the capacitor nad length of the capacitor is L neglect air friction or gravbity.....fiund the motiion n if SHM find its time p ...

When a dielectric is inserted in a parallel plate capacitor then how will the electric potential vary across the distance b/w the 2 plates? ...

*Image* Find charge that flows to the other plate when switch is closed. ...

please give me some hints on how to solve this q... In a LRC circuit, R=20 Ohm , pot diff across cap = 100 V and irms=11 A. An AC source is connected(220V,50HZ) . Calculate pot diff across inductor. ...

3) There are infinite point charges of equal charge Q and placed along x-axis at x=1,x=2,....x= (2)n If v remove charge at x=4 , then potential at x=0 due to rest of charges is a) Q/Πξ b)Q/2πξ C)7q/32πξ d)9Q/48πξ CONC ...

Plzzzz someone explain me how to plot the graphs for two particle charges for the variation of electric field / potential v/s x or y coordiante. Plzzz explain carefully with certain examples. ...