Question

Deriving the electromagnetic wave equation involves the successive application of this statement and a similar statement that features a negative term. Taking the curl of a curl in an equation derived from the Biot–Savart law yields this (20[1])statement under the magnetostatic approximation. (20[1])A term equal to the change in the electric displacement field (20[1])over time was (*) added to this (10[1])statement (10[4])by (10[1])Maxwell. (10[1])This statement (10[2])equates (10[1])[read slowly] “J-sub-f plus d-capital D-d-t (10[1])with the curl of the H-field.” This statement relates the line integral along a curve through a magnetic field to its enclosed electric current. (10[1])For 10 points, (10[1])identify this law in Maxwell’s (10[1])equations that was devised by the namesake (10[1])of the (10[1])SI unit of (10[1])electric current. (10[2])■END■ (10[6])

ANSWER: Ampère’s circuital law [or Ampère–Maxwell law] (The “similar statement” is Faraday’s law of induction.)
<Lalit Maharjan, Science - Physics&gt; ~28174~ &lt;Editor: David Bass>
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