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Electromagnetic Field Theory

Electromagnetic Field Theory
A conductor of length 100 cm moves at right angles to a magnetic field of flux density 1.5 Wb/m2 with a velocity of 50 m/s. The induced emf in the conductor will be

 150 V.
 75 V.
 37.5 V.
 50 V.

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Electromagnetic Field Theory
A point charge in space is attracted towards a dielectric material because of the

 all of above.
 maximisation of electrostatic flux.
 dielectric hysteresis.
 phenomenon of dielectric polarisation.

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Electromagnetic Field Theory
The potential that appears at a point in space due to the current which caused it is called potential

Retardation
Accelerating
Oscillating
Lagging the current

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Electromagnetic Field Theory
The critical frequency of ‘F’ layer is greater than 30 MHz.

False
True

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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
2.5
1.5
3.5

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Electromagnetic Field Theory
The Biot-savarts law is a general modification of

 Amperes law.
 Kirchhoffs law.
 Faradays law.
 Lenzs law.

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MORE MCQ ON Electromagnetic Field Theory

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