Ampere's circuital law involves finding the _________.

This question was previously asked in
HPCL Engineer Electrical 01 Nov 2022 Official Paper
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  1. total voltage enclosed by a closed path
  2. total current enclosed by a closed path
  3. total flux in a magnetic circuit
  4. total charge enclosed by a closed surface

Answer (Detailed Solution Below)

Option 2 : total current enclosed by a closed path
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Detailed Solution

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The correct answer is option 2):(total current enclosed by a closed path)

Concept:

Ampere's Circuital Law:

  • It gives the relationship between the current and the magnetic field created by it.
  • This law says that the integral of magnetic field density (B) along an imaginary closed path is equal to the product of current enclosed by the path and permeability of the medium.

F2 J.K 8.7.20 Pallavi D3

\(\oint \vec B.\overrightarrow {dl} = {μ _0}I\)

Where dl is a small element,

μ0 is the permeability of free space and

I is the electric current.

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