Calculate the frequency of the dielectric when the phase constant is 0.06.

The ability of charged bodies to exert force on one another is attributed to the existence of the

When exposed to sunlight, thin films of oil on water often exhibit brilliant colors due to the phenomenon of

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.

Calculate the directivity (in dB) of an end-fire array with 65 elements and the distance of separation between consecutive elements is λ/2.

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

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]

The speed of a D.C. series motor is

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: