356773
A carrier wave of peak voltage \(14 \mathrm{~V}\) is used for transmitting a message signal given to achieve a modulation index of \(80 \%\) will be:
356774
A message signal of frequency \(5\,kHz\) is used to modulate a carrier signal of frequency \(2\,MHz\). The bandwidth for amplitude modulation is
1 \(10\,kHz\)
2 \(20\,kHz\)
3 \(2.5\,kHz\)
4 \(5\,kHz\)
Explanation:
Frequency of message signal, \(f_{m}=5 {kHz}\) Frequency of carrier signal, \(f_{c}=2 {MHz}\) The bandwidth of amplitude modulation is \(2{f_m} = 2 \times 5 = 10\,kHz\)
JEE - 2023
PHXII15:COMMUNICATION SYSTEMS
356775
Choose the correct statement:
1 In amplitude modulation the frequency of the high frequency carrier wave is made to vary in proportion to the amplitude of the audio signal.
2 In frequency modulation the amplitude of the high frequency carrier wave is made to vary in proportion to the amplitude of the audio signal.
3 In frequency modulation the amplitude of the high frequency carrier wave is made to vary in proportion to the frequency of the audio signal.
4 In amplitude modulation the amplitude of the high frequency carrier wave is made to vary in proportion to the amplitude of the audio signal.
Explanation:
In amplitude modulation amplitude of carrier wave varies in proportion to applied signal.
PHXII15:COMMUNICATION SYSTEMS
356776
The amplitude modulated current is given by \(i=125[1+0.6 \sin 2900 t] \sin 10^{6} t\). The depth of modulation is
NEET Test Series from KOTA - 10 Papers In MS WORD
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PHXII15:COMMUNICATION SYSTEMS
356773
A carrier wave of peak voltage \(14 \mathrm{~V}\) is used for transmitting a message signal given to achieve a modulation index of \(80 \%\) will be:
356774
A message signal of frequency \(5\,kHz\) is used to modulate a carrier signal of frequency \(2\,MHz\). The bandwidth for amplitude modulation is
1 \(10\,kHz\)
2 \(20\,kHz\)
3 \(2.5\,kHz\)
4 \(5\,kHz\)
Explanation:
Frequency of message signal, \(f_{m}=5 {kHz}\) Frequency of carrier signal, \(f_{c}=2 {MHz}\) The bandwidth of amplitude modulation is \(2{f_m} = 2 \times 5 = 10\,kHz\)
JEE - 2023
PHXII15:COMMUNICATION SYSTEMS
356775
Choose the correct statement:
1 In amplitude modulation the frequency of the high frequency carrier wave is made to vary in proportion to the amplitude of the audio signal.
2 In frequency modulation the amplitude of the high frequency carrier wave is made to vary in proportion to the amplitude of the audio signal.
3 In frequency modulation the amplitude of the high frequency carrier wave is made to vary in proportion to the frequency of the audio signal.
4 In amplitude modulation the amplitude of the high frequency carrier wave is made to vary in proportion to the amplitude of the audio signal.
Explanation:
In amplitude modulation amplitude of carrier wave varies in proportion to applied signal.
PHXII15:COMMUNICATION SYSTEMS
356776
The amplitude modulated current is given by \(i=125[1+0.6 \sin 2900 t] \sin 10^{6} t\). The depth of modulation is
356773
A carrier wave of peak voltage \(14 \mathrm{~V}\) is used for transmitting a message signal given to achieve a modulation index of \(80 \%\) will be:
356774
A message signal of frequency \(5\,kHz\) is used to modulate a carrier signal of frequency \(2\,MHz\). The bandwidth for amplitude modulation is
1 \(10\,kHz\)
2 \(20\,kHz\)
3 \(2.5\,kHz\)
4 \(5\,kHz\)
Explanation:
Frequency of message signal, \(f_{m}=5 {kHz}\) Frequency of carrier signal, \(f_{c}=2 {MHz}\) The bandwidth of amplitude modulation is \(2{f_m} = 2 \times 5 = 10\,kHz\)
JEE - 2023
PHXII15:COMMUNICATION SYSTEMS
356775
Choose the correct statement:
1 In amplitude modulation the frequency of the high frequency carrier wave is made to vary in proportion to the amplitude of the audio signal.
2 In frequency modulation the amplitude of the high frequency carrier wave is made to vary in proportion to the amplitude of the audio signal.
3 In frequency modulation the amplitude of the high frequency carrier wave is made to vary in proportion to the frequency of the audio signal.
4 In amplitude modulation the amplitude of the high frequency carrier wave is made to vary in proportion to the amplitude of the audio signal.
Explanation:
In amplitude modulation amplitude of carrier wave varies in proportion to applied signal.
PHXII15:COMMUNICATION SYSTEMS
356776
The amplitude modulated current is given by \(i=125[1+0.6 \sin 2900 t] \sin 10^{6} t\). The depth of modulation is
356773
A carrier wave of peak voltage \(14 \mathrm{~V}\) is used for transmitting a message signal given to achieve a modulation index of \(80 \%\) will be:
356774
A message signal of frequency \(5\,kHz\) is used to modulate a carrier signal of frequency \(2\,MHz\). The bandwidth for amplitude modulation is
1 \(10\,kHz\)
2 \(20\,kHz\)
3 \(2.5\,kHz\)
4 \(5\,kHz\)
Explanation:
Frequency of message signal, \(f_{m}=5 {kHz}\) Frequency of carrier signal, \(f_{c}=2 {MHz}\) The bandwidth of amplitude modulation is \(2{f_m} = 2 \times 5 = 10\,kHz\)
JEE - 2023
PHXII15:COMMUNICATION SYSTEMS
356775
Choose the correct statement:
1 In amplitude modulation the frequency of the high frequency carrier wave is made to vary in proportion to the amplitude of the audio signal.
2 In frequency modulation the amplitude of the high frequency carrier wave is made to vary in proportion to the amplitude of the audio signal.
3 In frequency modulation the amplitude of the high frequency carrier wave is made to vary in proportion to the frequency of the audio signal.
4 In amplitude modulation the amplitude of the high frequency carrier wave is made to vary in proportion to the amplitude of the audio signal.
Explanation:
In amplitude modulation amplitude of carrier wave varies in proportion to applied signal.
PHXII15:COMMUNICATION SYSTEMS
356776
The amplitude modulated current is given by \(i=125[1+0.6 \sin 2900 t] \sin 10^{6} t\). The depth of modulation is
