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 A 2 MHz carrier is amplitude modulated by a 500 Hz modulating signal to a depth of 70%. If the unmodulated carrier power is 2 kW, the power of the modulated signal is
  • a)
    2.23 kW
  • b)
    2.36 Kw
  • c)
    1.18 kW
  • d)
    1.26 kW
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A 2 MHz carrier is amplitude modulated by a 500 Hz modulating signal t...
Pt = Pc (1 + 0.49/2). CORRECT ANSWER IS (A).
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Most Upvoted Answer
A 2 MHz carrier is amplitude modulated by a 500 Hz modulating signal t...
Given data:
Carrier frequency, fC = 2 MHz
Modulating signal frequency, fm = 500 Hz
Modulation depth, m = 0.7
Unmodulated carrier power, Pc = 2 kW

To find: Power of the modulated signal

Calculation:
The power of the modulated signal can be found using the formula:

PAM = Pc[(1 + m^2/2)]

Where,
PAM = Power of the amplitude modulated signal
m = Modulation depth = 0.7

Substituting the given values, we get:

PAM = 2 kW[(1 + 0.7^2/2)]
PAM = 2.23 kW

Therefore, the power of the modulated signal is 2.23 kW (approx).

Hence, option (a) is the correct answer.
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A 2 MHz carrier is amplitude modulated by a 500 Hz modulating signal to a depth of 70%. If the unmodulated carrier power is 2 kW, the power of the modulated signal isa)2.23 kWb)2.36 Kwc)1.18 kWd)1.26 kWCorrect answer is option 'A'. Can you explain this answer?
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A 2 MHz carrier is amplitude modulated by a 500 Hz modulating signal to a depth of 70%. If the unmodulated carrier power is 2 kW, the power of the modulated signal isa)2.23 kWb)2.36 Kwc)1.18 kWd)1.26 kWCorrect answer is option 'A'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about A 2 MHz carrier is amplitude modulated by a 500 Hz modulating signal to a depth of 70%. If the unmodulated carrier power is 2 kW, the power of the modulated signal isa)2.23 kWb)2.36 Kwc)1.18 kWd)1.26 kWCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A 2 MHz carrier is amplitude modulated by a 500 Hz modulating signal to a depth of 70%. If the unmodulated carrier power is 2 kW, the power of the modulated signal isa)2.23 kWb)2.36 Kwc)1.18 kWd)1.26 kWCorrect answer is option 'A'. Can you explain this answer?.
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