The best method of inducing a circular field in a tube is by a:

Related MCQs

• When a small diameter tube is placed in a glass of water, water rises in the tube to a level above the adjacent surface. This is called:
• Which of the following produces a circular field?
• A residual circular field may be objectionable because:
• How is the magnetic field strength at the surface of a magnetic conductor having permeability, µ, related to the magnetic field strength, F, at the surface of a nonmagnetic conductor carrying the same current?
• Compared to the magnetic field strength at the outer surface, the magnetic field strength, at the centre of a hollow, nonmagnetic conductor carrying DC current is:
• A residual field is always less than a continuous field because?
• When a magnetic field is induced in a part with prods spaced 150mm apart, the field is:
• With current flowing from + to - in a coil, a longitudinal field is created. Which of the following may be used to establish the direction of the magnetic field?
• Which penetrant process is best suited for portable application in the field?
• In which magnetizing method is the current passed directly through the part, thereby setting up a magnetic field at right angles to the current flow?