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Electromagnetic Field Theory
In order to minimize loss due to hysteresis the magnetic material should have
large coercivity.
small B-H loop area.
high resistivity.
high hysteresis coefficient.
large coercivity.
small B-H loop area.
high resistivity.
high hysteresis coefficient.
Answer
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Related Question
Electromagnetic Field Theory
Find the strength of the magnetic field when a 2m long conductor is moving with a velocity 4m/s inducing an emf of 20V.
5T.
0.5T.
2.5T.
10T.
5T.
0.5T.
2.5T.
10T.
Answer
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Electromagnetic Field Theory
The magnetic intensity in A/m at the centre of circular coil of diameter 1m and carrying a current of 2A is
8.
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3.
4.
8.
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Answer
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Electromagnetic Field Theory
A sphere of 20 cm radius contains electrical charge of density 2/(r sinθ) c/m3. What is the total charge contained within the sphere?
0.
None of above.
0.335 C.
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0.335 C.
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Answer
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Electromagnetic Field Theory
Plane z = 10 m carries charge 20 C/m2. The electric field intensity at the origin is
– 18 πuz v/m.
– 360 πuz v/m.
– 10 uz v/m.
– 72 πuz v/m.
– 18 πuz v/m.
– 360 πuz v/m.
– 10 uz v/m.
– 72 πuz v/m.
Answer
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Electromagnetic Field Theory
How much current must flow in a loop of radius 1m to produce a magnetic field of 1 mA/m?
1.5 mA.
1mA.
2 mA.
2.5 mA.
1.5 mA.
1mA.
2 mA.
2.5 mA.
Answer
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