The number of stages that can be directly coupled is limited because___________?
A. Changes in temperature cause thermal instability
B. Circuit becomes heavy and costly
C. It becomes difficult to bias the circuit
D. None of the above
A. Changes in temperature cause thermal instability
B. Circuit becomes heavy and costly
C. It becomes difficult to bias the circuit
D. None of the above
Which of the following has no units?
A. Permeability
B. Moment of a magnet
C. Magnetic susceptibility
D Permittivity
Magnetic susceptibility is the degree to which a material is magnetized by an external magnetic field, hence in the SI system it is dimensionless.
A. charge will flow from A to B
B. charge will flow from B to A
C. no flow of charge will occur
D. both a and b are possible
A. RL + RC
B. RC || RL
C. RL – RC
D. RC
A. number of turns in the coil
B. magnetic field strength
C. frequency of rotation
D. all of above
A. 24 V
B. 12 V
C. 0 V
D. 6 V
A. 0.15 to 0.30 km phps
B. 0.30 to 0.6 km phps
C. 0.6 to 2.4 km phps
D. 3 to 5 km phps
E. 10 to 15 km phps