Which of the following elements is diamagnetic?

Find the value of cos θ when the phase velocity is given as 12 × 10⁸ m/s.

The beam solid angle of an antenna whose directivity is 13.956 is ______

What is the bandwidth between first null for a broadside N-isotropic antenna with N = 65, and distance of separation is λ/2?

The Ward Leonard method of speed control provides uniform speed variation:

The power of a wave is 160 units and the RMS value of the magnetic field, H, is 25 units. Calculate the RMS value of the electric field, Erms.

Consider an antenna with the following parameters:

Efficiency (η) = 95%

Maximum radiation intensity (U_max) = 0.5 W/sr

and Input power (P_in) = 0.4 W

What is the Directivity of the Antenna (D) in dB?

Where a D.C. motor of 12 HP or more requires frequent starting, stopping, reversing, and speed control, which type of controller is used?

Two infinite parallel metal plates are charged with an equal surface charge density of the same polarity. The electric field in the gap between the plates is:

Read the following statement carefully and select the option that accurately describes it:

"Poisson's equation is the special case of Laplace's equation in a charge-free medium"