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Electromagnetic Field Theory
Mutual inductance between two magnetically coupled coils depends on
all of above.
cross sectional area of their common core.
the number of their turns.
permeability of core.
all of above.
cross sectional area of their common core.
the number of their turns.
permeability of core.
Answer
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Related Question
Electromagnetic Field Theory
The attenuation in waveguide above to cut off frequency
Very high
Very low
Zero
Infinite
Very high
Very low
Zero
Infinite
Answer
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Electromagnetic Field Theory
Voltage applied across a dielectric produces an electrostatic field 50 times greater than air. The dielectric constant of the dielectric will be
10.
20.
5.
50.
10.
20.
5.
50.
Answer
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Electromagnetic Field Theory
Find H for centre of solenoid having finite length d = 1 unit where N = no of turns = 500, I = 2 A.
100.
500.
1000.
None of these.
100.
500.
1000.
None of these.
Answer
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Electromagnetic Field Theory
The work done by a force F = 4un - 3uy + 2uz N in giving a 1nC charge a displacement of (10 ux + 2uy - 7uz) m is
100 nj.
40 nj.
20 nj.
60 nj.
100 nj.
40 nj.
20 nj.
60 nj.
Answer
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Electromagnetic Field Theory
Between a hollow and solid metal sphere, charge reside
on outer surface in hollow and throughout in solid.
on outer surface in both.
None of above.
on outer surface in hollow and throughout in solid
on outer surface in hollow and throughout in solid.
on outer surface in both.
None of above.
on outer surface in hollow and throughout in solid
Answer
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