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A sinusoid wave is expressed as 5 sin(4πt – 60°). Find the frequency.
- a)2 Hz
- b)50 Hz
- c)60 Hz
- d)20 Hz
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
A sinusoid wave is expressed as 5 sin(4πt – 60°). Find th...
Concept:
Considered a sinusoidal Alternating wave of voltage and current
From the waveform:
v = Vmsin(ωt)
And,
i = Imsin(ωt + ϕ)
Where Vm and Im are the maximum value of instantaneous voltage and current respectively.
v, i is the instantaneous value of voltage and current at any instant t.
ω is the angular frequency in radian/second.
And, ω = 2πf
f is the frequency in Hz
From the above three equations instantaneous value of voltage and current can be written as:
v = Vmsin(2πft)
And,
i = Imsin(2πft + ϕ)
Calculation:
Sinusoidal expression of the wave is given as 5 sin (4πt – 60°)
Comparing the above expression with the given equation:
as:
v = Vmsin(2πft)
Or,
i = Imsin(2πft + ϕ)
Hence, ω = 4π
We know that,
ω = 2πf
∴ 4π = 2πf
∴ f = 2 Hz
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A sinusoid wave is expressed as 5 sin(4πt – 60°). Find the frequency.a)2 Hzb)50 Hzc)60 Hzd)20 HzCorrect answer is option 'A'. Can you explain this answer? for Electrical Engineering (EE) 2025 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 sinusoid wave is expressed as 5 sin(4πt – 60°). Find the frequency.a)2 Hzb)50 Hzc)60 Hzd)20 HzCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A sinusoid wave is expressed as 5 sin(4πt – 60°). Find the frequency.a)2 Hzb)50 Hzc)60 Hzd)20 HzCorrect answer is option 'A'. Can you explain this answer?.
A sinusoid wave is expressed as 5 sin(4πt – 60°). Find the frequency.a)2 Hzb)50 Hzc)60 Hzd)20 HzCorrect answer is option 'A'. Can you explain this answer? for Electrical Engineering (EE) 2025 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 sinusoid wave is expressed as 5 sin(4πt – 60°). Find the frequency.a)2 Hzb)50 Hzc)60 Hzd)20 HzCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A sinusoid wave is expressed as 5 sin(4πt – 60°). Find the frequency.a)2 Hzb)50 Hzc)60 Hzd)20 HzCorrect answer is option 'A'. Can you explain this answer?.
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