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Electromagnetic-theory Questions Set 95:

Quiz Mode

What is the directivity of antenna having effective aperture 2 m²?

4π/λ²

8π/λ²

2π/λ²

π/λ²

Solution:

Power radiated by half-wave dipole with maximum current amplitude 5A is

900.5Ω

912.5Ω

800.5Ω

812.5Ω

Solution:

What is the Beam area for Directivity to be 2 in Steradian?

2π steradians

π steradians

4π steradians

0 steradians

Solution:

What is the maximum power gain of antenna with radiation efficiency 96% and directive gain 1?

0.92

0.94

0.96

0.98

Solution:

What is the radiation resistance of an antenna if it radiates 1kW and current in it is I _{r m s}=5A?

10Ω

20Ω

30Ω

40Ω

Solution:

What is the maximum directive gain of antenna with radiation efficiency 96% and maximum power gain 1?

1.02

1.04

1.06

1.08

Solution:

What is the Bandwidth of the antenna operating at resonant frequency 300MHz with Quality factor 20?

45MHz

30MHz

15MHz

10MHz

Solution:

What is the radiation resistance of an antenna if input power to it is 1200W and current in it is 10A having a power loss of 200W?

10Ω

20Ω

50Ω

5Ω

Solution:

If physical aperture of antenna is 0.01m² and aperture efficiency is 0.5, then what is the value of effective aperture?

0.5 m²

0.05 m²

0.005 m²

0.0005 m²

Solution:

What is the maximum power gain when the radiation resistance is 80Ω, loss resistance is 8Ω and the maximum directive gain is 1.5?

1.3131

1.3232

1.3434

1.3636

Electromagnetic-theory Questions Set 95:

What is the directivity of antenna having effective aperture 2 m²?

Solution:

Power radiated by half-wave dipole with maximum current amplitude 5A is

Solution:

What is the Beam area for Directivity to be 2 in Steradian?

Solution:

What is the maximum power gain of antenna with radiation efficiency 96% and directive gain 1?

Solution:

What is the radiation resistance of an antenna if it radiates 1kW and current in it is I _{r m s}=5A?

Solution:

What is the maximum directive gain of antenna with radiation efficiency 96% and maximum power gain 1?

Solution:

What is the Bandwidth of the antenna operating at resonant frequency 300MHz with Quality factor 20?

Solution:

What is the radiation resistance of an antenna if input power to it is 1200W and current in it is 10A having a power loss of 200W?

Solution:

If physical aperture of antenna is 0.01m² and aperture efficiency is 0.5, then what is the value of effective aperture?

Solution:

What is the maximum power gain when the radiation resistance is 80Ω, loss resistance is 8Ω and the maximum directive gain is 1.5?

Solution:

Related Question Sets:

Related Topics:

Electromagnetic-theory Questions Set 95:

What is the directivity of antenna having effective aperture 2 m2?

Solution:

Power radiated by half-wave dipole with maximum current amplitude 5A is

Solution:

What is the Beam area for Directivity to be 2 in Steradian?

Solution:

What is the maximum power gain of antenna with radiation efficiency 96% and directive gain 1?

Solution:

What is the radiation resistance of an antenna if it radiates 1kW and current in it is I r m s=5A?

Solution:

What is the maximum directive gain of antenna with radiation efficiency 96% and maximum power gain 1?

Solution:

What is the Bandwidth of the antenna operating at resonant frequency 300MHz with Quality factor 20?

Solution:

What is the radiation resistance of an antenna if input power to it is 1200W and current in it is 10A having a power loss of 200W?

Solution:

If physical aperture of antenna is 0.01m2 and aperture efficiency is 0.5, then what is the value of effective aperture?

Solution:

What is the maximum power gain when the radiation resistance is 80Ω, loss resistance is 8Ω and the maximum directive gain is 1.5?

Solution:

Related Question Sets:

Related Topics:

What is the directivity of antenna having effective aperture 2 m²?

What is the radiation resistance of an antenna if it radiates 1kW and current in it is I _{r m s}=5A?

If physical aperture of antenna is 0.01m² and aperture efficiency is 0.5, then what is the value of effective aperture?