THE MAGNETIC FIELD OF A MAGNETIZED IRON BAR WHEN STRONGLY HEATED

ELECTROMAGNETISM

Quiz
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Other
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Professional Development
•
Hard
prajisha rathnesh
Used 4+ times
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14 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
BECOMES STRONGER
BECOMES WEAKER
REVERSES IN DIRECTIONS
NO CHANGE
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reciprocal of reluctance is
permeance
susceptibility
permeability
reluctivity
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The magnitude of induced emf in a conductor depends upon the
the flux density of their magnetic field
rate of change of flux linkage.
amount of flux cut.
amount of flux linkage.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tesla is a unit of
flux density
field strength
FLUX
INDUCTANCE
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The direction of magnetic lines of force is
from south pole to north pole
from one end of the magnet to another
from north pole to south pole
NONE OF THESE
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The magnetic reluctance of a material
does not vary with increasing cross-sectional area of material
increases with an increasing cross-sectional area of material
decreases with increasing cross-sectional area of material
NONE OF THESE
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Permeance is to reluctance as conductance is to
INDUCTANCE
RESISTANCE
PERMEABILITY
RESISTANCE
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