The formula, NI = 45000/(L/D), gives proper magnetising current for a coil, regardless of coil size as long as:

Related MCQs

• The formula, NI = 45000/(L/D), is used to calculate the proper magnetising current for:
• The formula, NI = 45000/(L/D), is used to calculate the proper magnetising current for:
• How many turns of a coil will be needed to establish a longitudinal field in a steel shaft that is 22.86 cm (9 inches) long and 7.62 cm (3 inches) in diameter? 3000 amperes magnetizing current is available, it is desired to magnetize the part in accordance with the formula NI = 45,000/(L/D):
• In longitudinal magnetisation the proper term for calculating magnetising force is:
• What type of magnetization uses the formula: I = 45000/(L/D)N where I is the current in Amperes, N the number of turns of the magnetizing coil, L the length of the cylindrical test piece and D its diameter.
• For direct contact magnetising methods, the magnetic field is oriented in what direction relative to the current direction?
• For direct contact magnetising methods, current should be flowing in what direction relative to expected discontinuities?
• For direct contact magnetising methods, the magnetic field is oriented in what direction relative to the current direction?
• For direct contact magnetising methods, current should be flowing in what direction relative to expected discontinuities?
• The reverse magnetising force necessary to remove a residual magnetic field from a test piece after it has been magnetically saturated is called: