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Electromagnetic Field Theory

Electromagnetic Field Theory
The ability of charged bodies to exert force on one another is attributed to the existence of

 protons.
 electric field.
 electrons.
 neutrons.

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Electromagnetic Field Theory
The main purpose of choke is

 none of above.
  to pass low frequencies.
 to pass high frequencies.
 to block low frequencies.

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Electromagnetic Field Theory
An open wire transmission line having a characteristic impedance of 600 ohms is terminated by a resistive load of 900 O. The standing wave ratio will be

4.5
3.5
1.5
2.5

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Electromagnetic Field Theory
The core of coil length is 200 mm. The inductance of coil is 6 mH. If the core length is doubled, all other quantities, remaining the same, the inductance will be

 12 mH.
 48 mH.
 24 mH.
 3 mH.

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Electromagnetic Field Theory
A loop is rotating about x-axis in a magnetic field, B = BO cos(ω + φ) ay. The voltage in the loop is

 Due to both rotating and transformer action.
 Due to transformer only.
 Due to rotating only.
 Zero.

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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(E + B × V).
 q(E +V × H).
 q(E + V × B).
 q(H + V × E).

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MORE MCQ ON Electromagnetic Field Theory

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