What is Circular loop: Definition and 64 Discussions

A circular economy (also referred to as "circularity") is an economic system aimed at eliminating waste and the continual use of resources. Circular systems employ reuse, sharing, repair, refurbishment, remanufacturing and recycling to create a closed-loop system, minimising the use of resource inputs and the creation of waste, pollution and carbon emissions. The circular economy aims to keep products, equipment and infrastructure in use for longer, thus improving the productivity of these resources. Waste materials and energy should become input for other processes through waste valorization: either as a component or recovered resource for another industrial process or as regenerative resources for nature (e.g., compost). This regenerative approach is in contrast to the traditional linear economy, which has a "take, make, dispose" model of production.In recent years, concepts based on (re-)cycling resources are increasingly gaining importance. The most prominent among these concepts might be the circular economy, with its comprehensive support by China and the European Union. There is also a broad range of similar concepts or schools of thought, including cradle-to-cradle laws of ecology, looped and performance economy, regenerative design, industrial ecology, biomimicry, and the blue economy. These concepts seem intuitively to be more sustainable than the current linear economic system. The reduction of resource inputs into and waste and emission leakage out of the system reduces resource depletion and environmental pollution. However, these simple assumptions are not sufficient to deal with the involved systemic complexity and disregards potential trade-offs. For example, the social dimension of sustainability seems to be only marginally addressed in many publications on the Circular Economy, and some cases require different or additional strategies, such as purchasing new, more energy-efficient equipment.

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  1. Rubberduck2005

    Bead sliding on a Vertical Circular Loop versus in Free Fall

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  2. Bilbo B

    Magnetic field affecting a circular loop

    If the magnetic field is constant then no change in flux will bring no induced emf nor any induced current. With the loop is in rest position the external magnetic field will exert a force but to calculate that force with the help of magnetic field isn't obvious. If this were a charged loop, the...
  3. A

    Small bead - Circular loop Problem

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  4. P

    Circular loop of wire is concentric with a solenoid

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  5. TOUHID11

    Calculate Induced EMF in Circular Loop: Cylindrical Coordinates

    In order to calculate for the curl of the induced electric field for a loop moving in a uniform magnetic field, and using the cylindrical coordinate system for a curl, it's my understanding that since the B field is in the 𝑧̂ direction, then so is the partial time derivative of B, and therefore...
  6. F

    Calculating Centripetal Acceleration in a Vertical Loop

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  7. O

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  8. M

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  9. A

    Field of a circular loop around its axis issue

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  10. M

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  11. T

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  12. peroAlex

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  13. StudentOfScience

    Displacement Function of an Idealized Circular Loop Coaster

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  14. cheapstrike

    Tension in a flexible circular loop

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  15. B

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  16. H

    Magnetic field in a circular loop

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  17. KSNphysics

    Physics Magnetism - Wire Carrying Current in a Loop

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  18. A

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  19. J

    Circular loop in magnetic field

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  20. Biker

    Magnetic fields in circular loop

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  21. S

    Magnetic field strength for circular loop

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  22. Toughnuke

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  23. A

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  24. S

    Magnetic field of a circular loop

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  25. uselesslemma

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  26. Mr. Rho

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  27. A

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  28. cnh1995

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  29. Essence

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  30. Shinwasha

    Circular loop with uniform magnetic field

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  31. Coffee_

    Force on a shrinking circular loop in a constant B field

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  32. Hijaz Aslam

    Force on a circular loop due to hypothetical magnetic field.

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  33. ShayanJ

    Vector potential of a current carrying circular loop

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  34. Radarithm

    Electric field above a circular loop

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  35. binbagsss

    EM , magnetic field at centre of a carrying circular loop

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  36. D

    Direction of force on circular loop.

    Homework Statement Find direction of force on circular loop http://pokit.org/get/img/b886e52efb703d47d09fa6e781c74461.jpg What would hapend if direction of the current in a straight conductor were different ?Homework Equations ------The Attempt at a Solution...
  37. kira506

    Pleease explain uniformity of B in circular loop ?

    Why is the magnetic flux density uniform at the center of the circular loop ?
  38. K

    Velocity and acceleration in a frictionless circular loop

    This is a problem I encountered while studying/practicing for my upcoming MCAT exam: Homework Statement A 1kg block slides down a ramp and then around a circular loop of radius 10m. Assume that all surfaces are frictionless. 1)What is the minimum height of the ramp required so that...
  39. 5

    Magnetic field lines in a current carrying circular loop

    I wanted to ask that do each point of the current-carrying circular loop would create a magnetic field and hence the magnetic field lines? And if yes wouldn't the field lines produced by each point of the loop would intersect each other? I read somewhere that magnetic field lines never...
  40. L

    A current-carrying circular loop placed next to a long straight wire

    Homework Statement A current-carrying circular loop of radius R is placed next to a long straight wire, as shown in the diagram below. The current in the straight wire points to the right and is of magnitude 3 A. see diagram...
  41. E

    Mistake with Biot Savart, B of a circular loop integral

    I hope you don't mind if I'm a little liberal in your cute format. I'm looking for why method 1 does not equal method 2. 1. Homework Statement : Method 1--the "cute math" method. Alright, so... I have a circular loop of radius A, let's place it in the xy plane, with a steady current I...
  42. S

    Circular loop magnetic field

    Homework Statement As shown in the figure below, a circular loop of radius a = 0.1 m lies in the horizontal x-y plane with its center located at the origin, with steady current I = 2.0 A circulating in a counter-clockwise direction in the loop. The magnetic field strength B(0,0,z) at the...
  43. Q

    Magnetic field of circular loop

    Homework Statement Two small identical circular loops carrying equal currents are placed with the geometrical axis perpendicular to each other. Find the magnitude and direction at a point O at an equal distance x from their centers. Homework Equations Magnetic field of a current carrying...
  44. M

    Height of ramp given normal force in circular loop

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  45. D

    How Is Torque Calculated in a Circular Coil within a Magnetic Field?

    The maximum torue experienced by a circular, one-turn, coil in a 0.75T magnetic field is 8.4x10-4Nm. If the coil current is 3.7A, find the coil wire length. Homework Equations τ=Fr F=ILBsinθ ? r=L The Attempt at a Solution (8.4x10-4Nm)=[(3.7A)L(0.75T)sin90]L L=0.017m Can I do...
  46. Y

    Single circular loop of wire filled with a uniform magnetic

    Homework Statement The figure to the right shows a single circular loop of wire filled with a uniform magnetic field pointing into the page The radius of the loop is R = 1.75 cm. The magnitude of the magnetic field in the loop is changing according to B(t) = B0 exp{-t / 2.15sec} (a) what is the...
  47. M

    Magnetic Field Flux Through a Circular Loop Near an Infinite Wire

    [b]1. A circular loop, (of radius 'a') is placed with its center at a distance 'r' from an infinitely long current carrying wire, (carrying current 'I'), in the same plane as that of the wire. For, a<r, find the flux of magnetic field through the loop. [b]2. Differential Flux=B.dA, whose...
  48. S

    Inductive reactance – Circular loop with N lambda standing wave

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  49. S

    Inductive reactance – Circular loop with N lambda standing wave

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  50. A

    Induced EMF and a circular loop of wire

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