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Write the generalised expression for the...

Write the generalised expression for the Ampere's cricuital law in terms of `I_(c ) & I_(d)`. Mention the situation when there is
(ii) only `I_(d) & no I_(c)`

Text Solution

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Expression for Ampere circuital law
` oint vec(B) cdot vec(dl) = mu_(0)I_(c ) + mu_(0)epsilon_(0) (d phi_(E))/(dt)`
`oint vec(B)cdot vec(dl) = mu_(0) (I_(c ) + i_(d))`
In large region of space , no condition current `(I_(c ))` but there is only dispacement current `(I_(d))` to time varying electric field (i.e. flux). `oint vec(B)cdot vec(dl) = mu_(0) epsilon_(0) (d phi_(E))/(dt)`
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