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Electromagnetic Field Theory

Electromagnetic Field Theory
A voltage waveform V(t) = 12t2 is applied across a 1H inductor for t = 0, with initial current through it being zero. The current through the inductor for t = 0 is given by

 4t3.
 12t.
 24t.
 12t3.

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Electromagnetic Field Theory
The minimum height of outer atmosphere is

400 km
200 km
150 km
100 km

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Electromagnetic Field Theory
Two point charges (Q and – Q) are situated at the vertex of the square. If potential at another vertex is 2 V, so potential at opposite vertex (diagonally) is

 Zero.
 √ 2 V.
  2 V.
 1 V.

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Electromagnetic Field Theory
The drawback of Daltons atomic structure is that, it says

 unique nature of atom.
 the atoms can neither be created nor be destroyed.
 most of the volume of an atom is empty space.
 none of these.

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Electromagnetic Field Theory
A charge which when placed in vacuum from an equal and similar charge repels with a force of 9 × 103 N, is known as

 milli - coulomb.
 micro - coulomb.
 coulomb.
 pico - coulomb.

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Electromagnetic Field Theory
The frequency of the power wave associated with an electromagnetic wave having field as E = e-z/δ cos(ω - zδ) is given by

 ω/2π.
 ω.
 ω / π.
 ω/4π.

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MORE MCQ ON Electromagnetic Field Theory

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