Recently Active Electricity And Magnetism Questions

*Image* u can see that there is a cel of 12v and 4 capacitors in series after the first 3 capcitors the system is earthed.. find the pntential at a and pnt c a is the before the 1st capactor and c is the pnt after the last ca ...

*Image* 1. The figure shows a square loop of edge 'a' of a uniform wire. A current enter the loops a point 'a' and leaves at point 'c'. what will be the magnetic field at the point 'P' which on the perpendicular bisector of A ...

in carnot cycle, one process is isothermal and the other is adiabatic. the isothermal process is meant so that heat doesn't flow irrevesible between the working substance and heat reserviour. then WHAT IS THE USE OF HAVING TH ...

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*Image* plz solve or give hint of how to go abt it ...

if we say charge is quantised n is q=±ne then how can we integrate charge???? ...

*Image* the question states this........ there is an incomplete loop moving in a uniform magnetic field with a speed v...... the loop between points p and q is not complete find the potntial diffrence between pnt p and q ...

An LR circuit consists of an inductor coil with impedance of 5mH and a 20 \mu F capacitor. There is a negligible resistanc eacross the circuit .The circuit is driven by a voltage source with a voltage V=V1coswt . If v1 is 5mV ...

A cylindericla region of radius R contain a time varying magnetic field B(t) where t represents time.Work done to take a postive charge from P to Q through PCQ is W1 and through POQ is W2.FInd W2/W1 *Image* ...

*Image* Charge density is different but uniform on both sides of hemisphere. Find the force exerted on lower by the upper hemisphere. I need the approach. I have the answer ...

Drops of mercury of charge Q and mass M fall into a spherical vessel of radius 1m from a height of 4R from the base. Find the no. of drops that will enter the sphere. Use- 9Q2/Mg = 109 Edit: *Image* ...

can anyone explain more clearly ,with some diagram if possible ,what metal is saying here..............http://targetiit.com/iit-jee-forum/posts/my-electrostatics-12089.html ...

i odnt know abt u but i was wondering why a wire dod not produce electirc field . obviulsy such a question itself seemed absurd from a logical standpoint.... but i was looking for a deepr answwer and eventually managed to fin ...

some doubts in eloctromagnetism *Image* lets make it simple find the induced emf the rod is moving with a speed v towards the rite ...

if the jockey is connected at the wire a distancce of 560 cm find the cirrent thrugh the galvonometer i am not getting the write answer and i think the sum is wrong could anyone pls post the answer which he she is getting ...

From the surface of a round wire of radius a carrying a direct current I an electron escapes with a velocity v_0 perpendicular to the surface. What will be the maximum distance of the electron from the axis of the wire before ...

In the fig the capacitors C1 and C2 are at first charged to a potential of ΔV but with opposite polarity,so that points a and c are on the side of the respective positive plates of C1 and C2 and points b and d are on the sid ...

*Image* wat is d tension experienced if d film is pulled by forces radially frm all sides? ...

Q. 37 STATEMENT-1 : A charged particle can go unaccelerated through a region containing uniform electric and magnetic field in the same direction. and STATEMENT-2 : If a charged particle is projected along the direction of ma ...

*Image* WAT is d tension in d region placed in d magnetic field? R-radius of circle X-represents magnetic field. ...

Can V say this ?? [7] A.C. only flows on the surface of the wire. ...

*Image* each palte shown above has surface area A on one side and the separation between consequitive plates is d.the emf of the battery connected is 10 volts.find the magnitude of charge supplied by the battery tp each of th ...

*Image* A conductor AB of length L is carrying a current 'i' is placed perpendicular to a st. conductor XY carrying a Current I as shown.The force on AB will act A. Upward B. Downward C. To the right D. To the left Explain wh ...

i dnt wnt ans,sum1 pls explain me the capacitance when charged inner sphere(radius a) is earthed.charged outer sphere has radius b.cant derive it. ...

Pls explain y capacitance of a Parallel plate capacitor becomes Infinite when connected with metal rod in b/w. ...

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STATEMENT-1 : When a revolving electron jumps from higher orbit to lower orbit, then the magnetic field at the centre increases. and STATEMENT-2 : Magnetic field due to revolving electron is inversely proportional to n5, wher ...

I am posting all my doubts one by one from electrostatics..kindly help.. 1) A charge 'Q' is distributed uniformly on a ring of radius 'r'.A sphere of radius 'r' is constructed with its centre at the periphery of the ring. Fin ...

Q charge is uniformly distributed over the same surface of a right circular cone of semi-vertical angle θ and height h. The cone is uniformly rotated about a vertical axis passing through its vertex with ω. Calculate the as ...

A current I flows in a long thin walled cylinder of radius R. What pressure do the wall of the cylinder experience?? This went over my head completely. So please give detailed explanation ...