The Bohr magneton is given by?

Calculate the wavelength of a line with a phase constant of 9.25 units.

The power of a wave with a voltage of 140V and a characteristic impedance of 50 ohm is

The permeability of a paramagnetic substance is

The value of the electric field at a distance of 1 meter from an infinite line with charge density 1 C/m is?

In D.C. machines, fractional pitch winding is used to:

If the resistance of a wire is made four times while keeping the potential difference across it constant, then the number of times the heat produced in it varies is

A dipole antenna is 0.1 m long and has an internal resistance of 0.1 ohms. The dipole also has a radiation resistance of 0.3 ohms. What is the antenna efficiency (in percentage)?

A pulse of light with a duration of 100 ns is completely absorbed by a small object initially at rest. The power of the pulse is 30 mW, and the speed of light is 3×10⁸ m/s. The final momentum of the object is:

An electric dipole is placed at an angle of 30 degrees to a non-uniform electric field.

The dipole will experience: