Ampere's law — 211 discussions

The question is: Between two long parallel cylinders of radius "a" and "b" (non-coaxial) and an axal separation of "c", a steady current of "I" flows. (See attachment below) Show that the inner cylinder (radius "a") has a constant magnetic field. Use Ampere's Law. [Hint: 0 = 1 + (-1)]...

The question is: Between two long parallel cylinders of radius "a" and "b" (non-coaxial) and an axal separation of "c", a steady current of "I" flows. (See attachment below) Show that the inner cylinder (radius "a") has a constant magnetic field. Use Ampere's Law. Indicate all steps clearly...

The question is: Between two long parallel cylinders of radius "a" and "b" (non-coaxial) and an axal separation of "c", a steady current of "I" flows. (See attachment below) Show that the inner cylinder (radius "a") has a constant magnetic field. Use Ampere's Law. Indicate all steps clearly...

Hi all, This one's an easy one: What's the easiest way of telling whether a current is "enclosed" in a closed path or not? And how can I tell when a current effectively cancels itself out? For example, let's say I have a spherical shell with surface current density K [A/m], and I want to...

Magnetic field due to a solid wire of current using Ampere's circuital law. Current flows with density J=J_{o}\frac{U}{r}a_{z} [A/m^2] along long solid cylindrical wire of radius a having the z-axis as its axis. Find H \oint_{c}H\cdot\,dl=\int_{s}J\cdot\,dS Am I on the right way to...

Need Help -- Ampere's Law http://www.webassign.net/pse/p30-21alt.gif Figure P30.23 is a cross-sectional view of a coaxial cable. The center conductor is surrounded by a rubber layer, which is surrounded by an outer conductor, which is surrounded by another rubber layer. In a particular...

A 0.230-A current is charging a capacitor that has circular plates 10.0 cm in radius. (a) If the plate separation is 4.00 mm, what is the time rate of increase of electric field between the plates? (b) What is the magnitude of the magnetic field between the plates 5.00 cm from the...

Can someone help me with this please? Consider a toroidal sample of magnetic material wound, uniformly, with coils of wire that carry a current I. If the total number of coils is N and the relative permeability of the material is μr, calculate the magnetic field B, inside the toroid at radius...

If we want to find out the net magnetic field on a point near a conducting wire , we use ampere's law by take a closed surface in form of A CIRCLE...with radius equal to the distance of the point fromt he where...but where ampere fails is that it gives the same result for both a finite...

Hi all, I stumbled upon this page from google. I have to write a research paper for ampere's law. However, I cannot get enough info to meet the minimum number of pages for the paper. I did a google search at which I only got a paragraph on ampere's law...

how to apply the ampere's law to the infinite solenoid... how we find the equation for the magnetic field ?? who can help...