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Electromagnetic-theory Questions Set 92:

Quiz Mode

If FNBW (first null beam width) is 4°, then resolution is

1^o

1.5^o

2^o

4^o

Solution:

If FNBW (first null beam width) is 2°, then resolution is

4^o

2^o

1^o

none

Solution:

What is the overall efficiency of a lossless antenna with reflection coefficient 0.2?

0.99

0.96

0.93

Solution:

What is the overall efficiency of a lossless antenna with reflection coefficient 0.1?

0.77

0.88

0.99

0.11

Solution:

The radiation efficiency for antenna having radiation resistance 20Ω and loss resistance 0.85Ω is given by

0.592

0.52

0.2

0.9592

Solution:

Find the effective length of a receiving antenna with open circuit voltage 3V and incident electric field 200mV/m?

10m

15m

20m

Solution:

Find the effective length of a receiving antenna with open circuit voltage 2V and incident electric field 200mV/m?

10m

50m

100m

Solution:

The radiation efficiency for antenna having radiation resistance 30.15Ω and loss resistance 0.85Ω is given by

0.725

0.25

0.5

0.9725

Solution:

Find the power radiated by an antenna whose radiation resistance is 100Ω and operating with 9A of current at 2GHz frequency?

8100Watts

900Watts

500Watts

300Watts

Solution:

Find the power radiated by an antenna whose radiation resistance is 100Ω and operating with 6A of current at 2GHz frequency?

3600Watts

1800Watts

900Watts

400Watts

Solution:

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Electromagnetic-theory Questions Set 92:

If FNBW (first null beam width) is 4°, then resolution is

Solution:

If FNBW (first null beam width) is 2°, then resolution is

Solution:

What is the overall efficiency of a lossless antenna with reflection coefficient 0.2?

Solution:

What is the overall efficiency of a lossless antenna with reflection coefficient 0.1?

Solution:

The radiation efficiency for antenna having radiation resistance 20Ω and loss resistance 0.85Ω is given by

Solution:

Find the effective length of a receiving antenna with open circuit voltage 3V and incident electric field 200mV/m?

Solution:

Find the effective length of a receiving antenna with open circuit voltage 2V and incident electric field 200mV/m?

Solution:

The radiation efficiency for antenna having radiation resistance 30.15Ω and loss resistance 0.85Ω is given by

Solution:

Find the power radiated by an antenna whose radiation resistance is 100Ω and operating with 9A of current at 2GHz frequency?

Solution:

Find the power radiated by an antenna whose radiation resistance is 100Ω and operating with 6A of current at 2GHz frequency?

Solution:

Related Question Sets:

Related Topics: