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Electromagnetic...

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  • Question 1
    1 / -0

    The electric field phasor of an EM wave in free space is E (y) = 10 e-j4y ax V/m. The value of ω such that Maxwell equations are satisfied is _________ × 108 rad/s

  • Question 2
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    Match List I (Type of field denoted by A) with List-II (Behaviour) and select the correct answer using the codes given below:

     

    List I

     

    List II

    a.

    A static electric field a charge-free region

    1.

    ∇ ⋅ A = 0

    ∇ × A ≠ 0

    b.

    A static electric field in a charged region

    2.

    ∇ ⋅ A ≠ 0

    ∇ × A = 0

    c.

    A steady magnetic field in a current-carrying conductor

    3.

    ∇ ⋅ A ≠ 0

    ∇ × A ≠ 0

    d.

    A time-varying electric field in a charged medium with a time-varying magnetic field

    4.

    ∇ ⋅ A = 0

    ∇ × A = 0

  • Question 3
    1 / -0

    A material with conductivity σ = 10 S/m and εr = 2 has electric field intensity E = 200 sin(ωt). The frequency at which the magnitude of conduction current is equal to displacement current is _____ GHz. 

  • Question 4
    1 / -0

    For a parallel plate capacitor with plate area of 6 cm2 and plate separation of 6 mm has voltage \(36\sin {10^3}t\;\;V\) applied to plates. Displacement current, \({I_d}\) will be (in nA)

  • Question 5
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    Two extensive homogenous isotropic dielectrics meet on a plane z = 0. For z ≥ 0, εr1 = 4 and for z ≤ 0, εr2 = 2. A uniform electric field exists at z ≥ 0 as E1 = 5ax – 2ay + 3az kw/m. What is the value of E2z in the region z ≤ 0?

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