A. number of turns in the coil
B. magnetic field strength
C. frequency of rotation
D. all of above
Related Mcqs:
- A dynamo converts______________?
A. mechanical energy into electrical energy
B. electrical energy into mechanical energy
C. magnetic energy into mechanical energy
D. magnetic energy into electrical energy - The number of Boolean functions that can be generated by n variables is equal to_________________?
A. 2n
B. 22 n
C. 2n-1
D. — 2n - emf induced in a circuit according to Faradays law depends on the_____________?
A. maximum magnetic flux
B. rate of change of magnetic flux
C. change in magnetic flux
D. initial magnetic flux - Self inductance of a coil depends upon________________?
A. current flowing
B. number of turns per unit length
C. voltage produce
D. all - The resistivity of the conductor depends on
A. area of the conductor.
B. length of the conductor.
C. type of material.
D. none of these. - Mutually inductance between two magnetically-coupled coils depends on____________?
A. permeability of the core
B. the number of their turns
C. cross-sectional area of their common core
D. all of the above - The magnitude of the induced e.m.f. in a conductor depends on the______________?
A. flux density of the magnetic field
B. amount of flux cut
C. amount of flux linkages
D. rate of change of flux-linkages - The co-efficient of coupling between two air core coils depends on____________?
A. self-inductance of two coils only
B. mutual inductance between two coils only
C. mutual inductance and self inductance of two coils
D. none of the above - The specific energy consumption of a train depends on which of the following ?
A. Acceleration and retardation
B. Gradient
C. Distance covered
D. All of the above - The diameter of the rotor shaft for an electric motor depends on which of the following ?
A. r.p.m. only
B. Horse power only
C. Horse power and r.p.m.
D. Horse power, r.p.m. and power factor
