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Electromagnetic Field Theory

Electromagnetic Field Theory
A conductor of length L has current I passing through it, when it is placed parallel to strong magnetic field. The force experienced by the conductor will be

 BI2L.
 zero.
 BIL.
 BL2I.

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
Find the length of a conductor which is moving with a velocity 0.4m/s in a magnetic field of 8T, inducing an emf of 20V.

 6.25m.
 5.25m.
 0.6m.
 0.5m.

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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

 2.5 N.
 2 N.
 5 N.
 3.75 N.

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Electromagnetic Field Theory
If a and b are the dimensions of waveguide then

a = b/4
a = 3b
a = 2b
a = b

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Electromagnetic Field Theory
Plane z = 10 m carries charge 20 C/m2. The electric field intensity at the origin is

 – 72 πuz v/m.
 – 10 uz v/m.
  – 360 πuz v/m.
 – 18 πuz v/m.

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Electromagnetic Field Theory
RF inductor are characterized by

 high current rating and high resistance.
 low current rating and low resistance.
 high current rating and low resistance.
 low current rating and high resistance.

ANSWER DOWNLOAD EXAMIANS APP
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