Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > The corner frequency in the Bode plot is:a)Th...
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The corner frequency in the Bode plot is:
- a)The frequency at which bode plot slope is 0 dB /decade.
- b)The frequency at which bode plot slope is -10 dB /decade.
- c)The frequency at which the two asymptotes intersect.
- d)The frequency at which the two asymptotes meet.
Correct answer is option 'D'. Can you explain this answer?
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The corner frequency in the Bode plot is:a)The frequency at which bode...
Explanation:
Bode plot is a graph used for analyzing the frequency response of a system. It consists of two parts: magnitude plot and phase plot. The magnitude plot shows the gain of the system at different frequencies, while the phase plot shows the phase shift of the system at different frequencies.
Corner frequency is a very important parameter in the Bode plot. It is the frequency at which the two asymptotes meet. The two asymptotes are:
- A straight line with a slope of +20 dB/decade, which starts at a frequency equal to the lower cutoff frequency and passes through a point whose magnitude is 3 dB below the maximum magnitude of the system.
- A straight line with a slope of -20 dB/decade, which starts at a frequency equal to the upper cutoff frequency and passes through a point whose magnitude is 3 dB above the minimum magnitude of the system.
At the corner frequency, the magnitude of the system is equal to the magnitude of the straight line with a slope of +20 dB/decade, and also equal to the magnitude of the straight line with a slope of -20 dB/decade. Therefore, the corner frequency is the frequency at which the two asymptotes meet.
Hence, the correct answer is option D, "The frequency at which the two asymptotes meet."
Bode plot is a graph used for analyzing the frequency response of a system. It consists of two parts: magnitude plot and phase plot. The magnitude plot shows the gain of the system at different frequencies, while the phase plot shows the phase shift of the system at different frequencies.
Corner frequency is a very important parameter in the Bode plot. It is the frequency at which the two asymptotes meet. The two asymptotes are:
- A straight line with a slope of +20 dB/decade, which starts at a frequency equal to the lower cutoff frequency and passes through a point whose magnitude is 3 dB below the maximum magnitude of the system.
- A straight line with a slope of -20 dB/decade, which starts at a frequency equal to the upper cutoff frequency and passes through a point whose magnitude is 3 dB above the minimum magnitude of the system.
At the corner frequency, the magnitude of the system is equal to the magnitude of the straight line with a slope of +20 dB/decade, and also equal to the magnitude of the straight line with a slope of -20 dB/decade. Therefore, the corner frequency is the frequency at which the two asymptotes meet.
Hence, the correct answer is option D, "The frequency at which the two asymptotes meet."
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Community Answer
The corner frequency in the Bode plot is:a)The frequency at which bode...
The frequency at which the two asymptotes in the Bode plot meet is termed as corner frequency.
Hence, the correct answer is an option (d).
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The corner frequency in the Bode plot is:a)The frequency at which bode plot slope is 0 dB /decade.b)The frequency at which bode plot slope is -10 dB /decade.c)The frequency at which the two asymptotes intersect.d)The frequency at which the two asymptotes meet.Correct answer is option 'D'. Can you explain this answer?
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