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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
2.
8.
3.
4.
2.
8.
3.
4.
Answer
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Related Question
Electromagnetic Field Theory
For an inductor, current is proportional to
voltage across the inductor.
none of them.
both (A) and (B).
magnetic field.
voltage across the inductor.
none of them.
both (A) and (B).
magnetic field.
Answer
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Electromagnetic Field Theory
The shape of B-H curve for air gap is
straight line.
hyperbola.
ellipse.
parabola.
straight line.
hyperbola.
ellipse.
parabola.
Answer
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Electromagnetic Field Theory
The electric field on a plane is decribed by . The field due to
a monopole.
a dipole and a monopole.
a dipole.
none of above.
a monopole.
a dipole and a monopole.
a dipole.
none of above.
Answer
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Electromagnetic Field Theory
A coil of 300 turns is wound on a non magnetic core having a mean circumference of 300 mm and a cross sectional area of 300 mm2. The inductance of the coil corresponding to a magnetizing current of 6 A will be
1.1304 μH.
3.768 μH.
37.68 μH.
113.04 μH.
1.1304 μH.
3.768 μH.
37.68 μH.
113.04 μH.
Answer
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Electromagnetic Field Theory
If n is the polarization vector and k is the direction of propagation plane electromagnetic wave, then
n = K.
n = - k.
n × k = 0.
n. k = 0.
n = K.
n = - k.
n × k = 0.
n. k = 0.
Answer
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