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Electromagnetic Field Theory

Electromagnetic Field Theory
It is best to use for coupling a coaxial line to a parallel wire transmission line.

Balun
Directional Coupler
Tee
Slotted line

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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

 zero.
 BIL.
 BL2I.
 BI2L.

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Electromagnetic Field Theory
An electric field of 1.92 × 103 N/C is maintained across two plates separated by 0.015 m. Potential difference across plates will be

 1.4 V.
 28.8 V.
 14.40 V.
 2.88 V.

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Electromagnetic Field Theory
The coils having self inductance of 10 mH and 15 mH have an effective inductance of 40 mH, when connected in series aiding. What will be the equivalent inductance if we connect then in series opposing?

 5 mH.
  10 mH.
 0 mH.
 20 mH.

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Electromagnetic Field Theory
A voltage waveform V(t) = 12t2 is applied across a 1H inductor for t = 0, with initial current through it being zero. The current through the inductor for t = 0 is given by

 12t.
 24t.
 12t3.
 4t3.

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Electromagnetic Field Theory
In above question no. 9, the average force on the core to reduce the air gap will be

 3332.47 N.
 6664.8 N.
 832.29 N.
 1666.22 N.

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Electromagnetic Field Theory

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