The radiation resistance of an antenna with a power of 120 units and antenna current of 5A is (in ohms)

Wide and sensitive speed control is usually desired in case of

Find the Brewster's Angle when the refractive index of medium 1 is n1 = 1.112 and the refractive index of medium 2 is n2 = 1.89.

A wave transmits from a medium with permittivity of 3.2 to a medium with permittivity of 1.5. Calculate the Brewster's Angle of the wave.

D.C. series motors are used

The work done by a force F acting on an object over a distance d, separated by an angle θ, can be calculated using:

A conducting material has a conduction current density of 75 units and an electric field of 1.8 units. Find the conductivity of the material.

Regenerative braking is based on the principle that

By using only two resistance coils, either singly, in series or in parallel, one should be able to obtain resistance values of 3, 4, 12, and 16 ohms. What are the separate resistance values of the two coils?

A long wire composed of a smooth round conductor runs above and parallel to the ground (assumed to be a large conducting plane). A high voltage exists between the conductor and the ground. The maximum electric field strength occurs at: