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The long straight wire in the figure carries a current i that is decreasing with time at a constant rate. The circular loops a, b, and c all lie in a plane containing the wire. The induced emf in each of the loops a, b, and c is such that.

Respuesta :

The induced EMF in each of the loops a, b, and c is such that loop A has a counter-clockwise EMF, loop B has no induced EMF, and loop C has a clockwise EMF.

How is the direction of EMF decided?

  1. As given in the figure, the loops a, b, c are decreasing with time.
  2. The direction of current is left to right.
  3. Due to which ,  current is maximum at loop A and minimum at loop C .
  4. We know, if current is maximum then the magnetic field is also maximum.
  5. If magnetic field is maximum then induced magnetic field is minimum and hence induced EMF is also minimum.
  6. Because the EMF is minimum loop A will rotate counter-clockwise .
  7. Since, loop B is along the wire there is no magnetic field hence no EMF .
  8. And loop C is at minimum hence more EMF is generated and hence it rotates clockwise .

What is EMF ?

The highest potential difference between two electrodes of a galvanic or voltaic cell is what creates electromagnetic force. The characteristic has to do with how readily an element, molecule, or ion tends to gain (gain) or lose electrons.

Can learn more about EMF from

https://brainly.in/question/2132850

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