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Electromagnetic Field Theory
A negative point charge q = - 40 nC is moving with velocity of 6 × 106 m/s in a direction specited by unit vector uy + 0.6 uz. Find the magnitude of force vector on the moving particle by the field B = 2 ux + 3 uy + 5 uz mT and E = 2 ux - 3 uy + 5 uz KV/m
1440 μN.
1144 μN.
244 μN.
144 μN.
1440 μN.
1144 μN.
244 μN.
144 μN.
Answer
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Related Question
Electromagnetic Field Theory
As a result of reflection from a plane conducting wall, electromagnetic waves acquire an apparent velocity greater than the velocity of light in space. This is called the
velocity of propagation.
group velocity.
normal velocity.
phase velocity.
velocity of propagation.
group velocity.
normal velocity.
phase velocity.
Answer
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Electromagnetic Field Theory
In an inductor current cannot change abruptly. Comment on the statement.
True partially.
False.
Cannot comment.
True.
True partially.
False.
Cannot comment.
True.
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 current of 3 A will be
37.68 mH.
113.04 µH.
37.68 µH.
113.04 mH.
37.68 mH.
113.04 µH.
37.68 µH.
113.04 mH.
Answer
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Electromagnetic Field Theory
The emf induced in a conductor rotating in bipolar field is
DC and AC both.
DC.
AC.
none of these.
DC and AC both.
DC.
AC.
none of these.
Answer
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Electromagnetic Field Theory
Which of the following statement regarding waveguides is incorrect?
At waveguide can be coupled to a coaxial cable
At frequencies below the cut off value the wave progresses across the waveguide after total reflections
Waveguides can handle large power at UHF and microwaves
Waveguides are usually air filled hollow conducting metallic tubes for transmitting UHF and microwaves
At waveguide can be coupled to a coaxial cable
At frequencies below the cut off value the wave progresses across the waveguide after total reflections
Waveguides can handle large power at UHF and microwaves
Waveguides are usually air filled hollow conducting metallic tubes for transmitting UHF and microwaves
Answer
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