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What is the maximum directive gain of antenna with radiation efficiency 98% and maximum power gain 1?
Which of the following statements is/are correct regarding the Directive Principles of the State Policy? A. In case of a conflict between the Directive Principles and Fundamental Rights, the Directive Principles shall prevail in the court. B. Fundamental rights are not unlimited and citizens are subject to reasonable restrictions. The Directive Principles are subject to any constitutional limitations.
Consider a lossless antenna with a directive gain of +6 decibel. If 1 milliwatt of power is fed to it, the total power radiated by the antenna will be (in milliwatt)
For a lossless antenna, maximum Power gain equals to the maximum directive gain.
If an antenna has a directivity of 16 and radiation efficiency of 0.9, then the gain of the antenna is:
Below stated are some of the statements about the Alternating current. You need to identify which of the following is incorrect, 1. DC power is far more powerful than AC power. The efficiency and power to size characteristics of DC motors and apparatuses are increased. Lighting by DC (LED) is 75% more efficient than lighting from incandescence. 2. A comparatively high voltage alternating current may be generated and easily raised and dropped by the static equipment known as the transformer, which makes electrical energy transmission and distribution economical, 3. Initial costs and maintenance of the AC motor are less expensive since it has no switch and is less powerful than the DC motor for constant working speed, hence it is desired to create power as alternating current. 4. The great efficiency of transmission in ac makes electric power generation cost-effective, Produced in huge quantities in one station and distributed throughout a vast area.
A rectangular horn antenna has an aperture area of 3λ × 2λ. If the aperture efficiency of an antenna is 90%, then the directivity of the antenna is:
List I embodies situational leadership style and List II indicates the power resource which supports them. List I Situational leadership style List II Power resource a)  Directive style (HT / LR) i) Expert power b) Supportive style (HT / HR) ii)  Information power c) Participative style (LT / HR) iii)  Reward power d)  Delegating style (LT / LR) iv)  Coercive power   *HT = High Task LT = Low Task HR = High Relationship LR = Low Relationship Choose the correct answer from the options given below:
If the power input to an antenna is 100 mW and if the radiated power is measured to be 90 mW, then the efficiency of the antenna is:
A radio link has 15 W transmitter connected to an antenna of 2.5 m2 effective aperture at 5 GHz. The receiving antenna has an effective aperture of 0.5 m2 and is located at a 15 Km line of sight distance from transmitting antenna. Assuming lossless, matched antennas, the power delivered to the receiver is: