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Electromagnetic Field Theory

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

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

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
A long straight wire carries a current I = 10A. At what distance is the magnetic field H = 1A/m?

 1.39 m.
 1.29 m.
 1.19 m.
 1.59 m.

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Electromagnetic Field Theory
XEROX machine is working on

 peltier effect.
 magnetic effect.
 electrostatic effect.
 heating effect of current.

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Electromagnetic Field Theory
A fan blade of length 2R rotates in a time period T in a magnetic field B. The induced voltage in the blade is proportional to

 R2B / T.
 R2BT.
 2RBT.
 RBT.

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Electromagnetic Field Theory
In an impedance smith chart, a clockwise movement along a constant resistance circle gives rise to

An increase in the value of reactance
No change in the reactance value
No change in the impedance value
Decrease in the value of reactance

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Electromagnetic Field Theory
Poyniting vector has the dimensions

 Watts/metre2.
 Watt × metre2.
 Watt × metre.
 Watt/metre.

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Electromagnetic Field Theory

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