If ω is the angular velocity and β is the phase constant, the group velocity is given by

Two equal and opposite charges separated by a small distance is called a

Find the inductance when the energy stored in the inductor is 2 units and the current is 16A.

The magnetic moment of a field with a current of _____ A and an area of 5 units is equal to 40 units.

A wave has an attenuation coefficient of 0.2 and a resistance of 15 Ω. Find the characteristic impedance of the line.

A quarter-wave transmission line that is open-circuited at the far end behaves as:

A parabolic antenna has a radius of 10 m and a loss factor of 60%. Calculate the gain at an operating frequency of 5 GHz.

As the load on a DC shunt motor is increased, the motor speed will:

A transformer has 500 primary turns and 10 secondary turns. If the secondary has a resistive load of 15 ohms, the currents in the primary and secondary respectively are:

Consider the following statements about the magnetic interface conditions:

1. The normal component of the magnetic flux density (B_n) is discontinuous, but the tangential component (B_t) is always continuous at an interface.
2. All field components are discontinuous.

Which of the following is correct?