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Question

Maxwell's modified form of Ampere's circuital law is
  1. sB.dl=μ0I
  2. sB.ds=0
  3. sB.dl=μ0I+Iεodqdt
  4. sB.dl=μ0I+μ0εodϕEdt

A
sB.ds=0
B
sB.dl=μ0I+μ0εodϕEdt
C
sB.dl=μ0I
D
sB.dl=μ0I+Iεodqdt
Solution
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Answer: D
Treating all charges on the same footing (disregarding whether they are bound or free charges), the generalized Ampère's equation, also called the Maxwell–Ampère equation, is in integral form.

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