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ESE 2019 Technical (Electromagnetics : Quiz 1 )
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Question 1
In which antenna arrangement, two collinear conductors placed end to end with feeder in between.
Question 2
What will be the standing wave ratio (SWR) of the transmission line having a terminal impedance Zterm of 8.5 kΩ with characteristic impedance Z0 of 7.5 kΩ.
Question 3
A half dipole in inserted in a focal point of parabolic reflector with opening radius R and focal distance f as shown in figure. If the opening angle is δθ ≈ R/f, then find the directivity D of dipole for wavelength λ=200nm and opening radius R=30cm
Question 4
In which capacitor, the layer of metal oxide is formed?
Question 5
In cylindrical waveguides the attenuation will be minimum, at a frequancy which is times the cut-off frequency for the following modes of operations:
1. TE10 2. TM11
3. TM10 4. TE11
Which of the above the correct?
1. TE10 2. TM11
3. TM10 4. TE11
Which of the above the correct?
Question 6
Assertion (A): The velocity of light in any medium is slower than that of vacuum.
Reason (R): The dielectric constant of the vacuum is unity and is lesser than that of any other medium.
Reason (R): The dielectric constant of the vacuum is unity and is lesser than that of any other medium.
Question 7
If V= is a solution of Laplace’s equation, what will be the value of K?
Question 8
A current of 5 passes along the axis of a cylinder of a 5cm radius. The flux density at the surface of the cylinder is
Question 9
What will be the maximum value of magnetic field, if an electromagnetic wave propagates in x direction with wavelength 15.0 mm having an electric field in y direction with magnitude of 80 V/m
Question 10
An infinitely long straight conductor located along z-axis carries a current / in the positive z-direction The magnetic field any point P in the x-y plane is in which direction?
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