Electromagnetic Induction

A. more wire can be used with less D.C. resistance in coil
B. the laminations are insulated from each other
C. the magnetic flux is concentrated in the air gap of the core
D. the laminations are stacked vertfcally

A. flux density of the magnetic field
B. amount of flux cut
C. amount of flux linkages
D. rate of change of flux-linkages

A. Henry
B. Coulomb/volt ampere
C. Volt second per ampere
D. All of the above

A. permeability of the core
B. the number of their turns
C. cross-sectional area of their common core
D. all of the above

A. Faraday
B. Lenz
C. Newton
D. Coulomb

A. aid the increasing current
B. tend to decrease the amount of cur-rent
C. produce current opposite to the in-creasing current
D. aid the applied voltage

A. hysteresis losses
B. eddy current losses
C. both (A) and (B)
D. none of the above

A. self-inductance
B. mutual inductance
C. series aiding inductance
D. capacitance

A. Laplace’s law
B. Lenz’s law
C. Fleming’s right hand rule
D. Kirchhoff s voltage law

A. zero resistance and inductance
B. infinite resistance and zero inductance
C. infinite resistance and normal inductance
D. zero resistance and high inductance