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# GATE 2023 EMT Rank Booster Quiz 44

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Question 1

In which antenna arrangement, two collinear conductors placed end to end with feeder in between.

Question 2

The current in a short circuit element of length l = 0.03 λ is given by

What will be the radiation resistance (in Ω) of the element?

Question 3

A half wave dipole antenna is located at origin as shown in figure below. The antenna is fed by a current i(t) = 83.3 cos ωt mA. What will be the electric field strength (in μ V/m) at point P?

Question 4

Maximum electric field strength radiated by an antenna is 6 m V/m measured at 40 km from the antenna.

If the antenna radiates a total power of 100 kW then the directivity of antenna is

Question 5

Maximum electric field strength radiated by an antenna is 6 m V/m measured at 40 km from the antenna.

If the efficiency of the radiation is 95% then it’s maximum power gain is

Question 6

If directive gain of a half wave dipole is 2.64 W/W, and ohmic losses is 8Ω, then determine its power gain(in dB).

Question 7

An antenna with a radiation efficiency of 90% has a directivity of 6dB. The maximum power gain of the same antenna is _________ dB.
• 36 attempts