Spontaneous magnetisation is characteristic of ferromagnetic materials.
A). True
B). False
1. Direct method is used to measure
2. Which of the following is the least expensive protection for overcurrent is low voltage system ?
3. Part of the transformer which is most subject to damage from overheating is
5. A moving-coil permanent-magnet instrument can be used as _____ by using a low resistance shunt.
6. The number of slip rings on a squirrel cage induction motor is usually
10. In class A operation, the operating point is generally located ___________ of the d.c. load line.