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Electromagnetic Field Theory
The force on a charge moving with velocity v under the influence of electric and magnetic fields is given by which one of the following
q(H + V × E).
q(E + B × V).
q(E +V × H).
q(E + V × B).
q(H + V × E).
q(E + B × V).
q(E +V × H).
q(E + V × B).
Answer
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Related Question
Electromagnetic Field Theory
If n is the polarization vector and k is the direction of propagation plane electromagnetic wave, then
n = - k.
n × k = 0.
n. k = 0.
n = K.
n = - k.
n × k = 0.
n. k = 0.
n = K.
Answer
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Electromagnetic Field Theory
A wire 1 m long carries a current of 5A and is at an angle of 30o with B = 1.5 wb/m2. Magnitude of force is
2 N.
5 N.
3.75 N.
2.5 N.
2 N.
5 N.
3.75 N.
2.5 N.
Answer
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Electromagnetic Field Theory
In an iron core coil the iron core is removed so that the coil becomes an air core coil. The inductance of the coil will
increase.
initially increase and then decrease.
decrease.
remain the same.
increase.
initially increase and then decrease.
decrease.
remain the same.
Answer
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Electromagnetic Field Theory
Materials subjected to rapid reversals of magnetism should have
low permeability.
low hysteresis loss.
high permeability.
both a and b.
low permeability.
low hysteresis loss.
high permeability.
both a and b.
Answer
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Electromagnetic Field Theory
Which of the following impedance inversion is obtained?
A half wave line
A quarter wave line
Short-circuited stub
Balun transformer
A half wave line
A quarter wave line
Short-circuited stub
Balun transformer
Answer
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