Electromagnetic-theory Questions Set 47:
Calculate the frequency of the dielectric when the phase constant is 0.06.
Solution:
The ability of charged bodies to exert force on one another is attributed to the existence of the
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When exposed to sunlight, thin films of oil on water often exhibit brilliant colors due to the phenomenon of
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The dipole moment of a dipole is 0.5 C⋅m with equal charges of 2.5 C and -2.5 C. Find the distance of separation between the two charges.
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Calculate the directivity (in dB) of an end-fire array with 65 elements and the distance of separation between consecutive elements is λ/2.
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The energy stored in the magnetic field of a solenoid 20 cm long and 2 cm diameter, wound with 3000 turns of wire carrying a current of 10 A, is ______ J
Solution:
Find the return loss of the system whose S-parameter matrix is defined as follows:
S = [ 0.15 ∠50° 0 0
0 0⁄6 ∠14° 0.7 ∠45°
0.32 ∠-45° 0 0]
Solution:
The speed of a D.C. series motor is
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Two long straight wires are set parallel to each other. Each carries a current i in the same direction, and the separation between them is 2r. The intensity of the magnetic field midway between them is:
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