0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What are disadvantages of harmonics?
harmonics increase heating of motors ,transformers and capacitors .Power system protecting relays may operate falsly, meters give inaccurate readings,interference with telephone lines may also occur. Moreover resonance due to harmonics also causes problems
Why do complex non-sinusoidal signals produce greater bandwidth?
because they have more harmonics
What is harmonics in a transformer?
When discussing harmonics in relation to transformers, generally you're thinking of harmonics in the current waveform - if it's a 60Hz transformer, the 2nd harmonic would be 120Hz, and is usually very high on transformer energization (referred to as inrush current). The nonlinearity of the core can result in core saturation under multiple different conditions, which tend to produce harmonic currents.
Why higher frequencies attenuate more than lower frequencies?
Perhaps because the medium more readily absorbs the higher energies of the upper harmonics. This might be related to the stiffness or elasticity of the medium, whatever it happens to be.
What happens if we sample the signal at sampling frequency nearer to signal frequency?
If you sample at more than the Nyquist frequency (one half the signal frequency) you introduce an aliasing distortion, seen as sub harmonics.
What are disadvantages of harmonics?
harmonics increase heating of motors ,transformers and capacitors .Power system protecting relays may operate falsly, meters give inaccurate readings,interference with telephone lines may also occur. Moreover resonance due to harmonics also causes problems
Is odd or even harmonic distortion more pleasing to the ear?
Scroll down to related links and look at "Harmonics and overtones in comparison" or scroll down to related links and look at "Calculations of Harmonics from Fundamental Frequency". http://www.sengpielaudio.com/calculator-harmonics.htm Besides the fundamental "even harmonics" bring here the added tones: c , c, g, c, e, g , bflat, c :-) and "uneven harmonics" bring here the tones: g, e, bflat, d, f#, aflat, b ;-( Which of those both rows will be more pleasing? You can see it. Even harmonics sound more brilliant. Don't mix up harmonics with overtones! Even harmonis are uneven overtones and uneven harmonics are even overtones. Better stay with the word harmonics.
What has more harmonics in its sound a tuning fork or guitar?
A guitar is a far more complex structure than a tuning fork, and has more harmonics. The whole design of a tuning fork is intended to give as simple and pure a sound as possible, since that is the easiest type of sound to use when you are trying to tune an instrument. You wouldn't want harmonics in a tuning fork.
Why would a female dog mail another female dog?
The one mailing the other is more dominate
How do you create natural harmonics?
Natural harmonics are produced on a guitar by lightly putting your finger on the 12th, 7th, or 5th frets. There are other ones but these are the most common and easiest to use. IF you want to know more about them and how they work there is a great vid on them at http://www.youtube.com/watch?v=5j2AxGGmT-g
Does a tuning fork have more harmonics or does a guitar?
Guitar. Tuning forks are a sine wave
Why do complex non-sinusoidal signals produce greater bandwidth?
because they have more harmonics
Sources of harmonics?
Harmonics is multiple of fundamental frequency. Spurious is not related to fundamental frequency but it is observed at the output spectrum. Harmonics are generated due to non-linearity of the device. Harmonics can generate spurious. As an example harmonics can produce resonance with mechanical box internal structure and can generate spurious. Harmonics generally generated from TCXO & frequency multipliers. If amplifier is non-linear, this will also generate harmonics. But harmonics very near to carrier generally generates interference to modulating signals. We design final power amplifier as a class AB amplifier to get more output power and better efficiency and also to minimize output power variation with temperature. Since it is non linear amplifier it generates harmonics but it will be very far from carrier and can be filtered easily. See the link for detail :- http://harshit.org/spurious and harmonics.pdf
Is blonde hair dominate to brown hair?
No,brunette hair is dominate because their are more of them.As well as being dominate,it doesnt mean that they are smarter
What is a Flute chord?
Basic chords are: *C# and E: Thumb, second and third fingers on left hand; on the right hand, use your F finger to put the F down and your D finger to put the E down. Then use the E finger to press the first trill key. *D and F: Finger F while pressing both trill keys. *C and the D an octave above: Finger the third D and under blow it. *Other: By playing a low note (middle C, C# or D is best) and overblowing to get the harmonics, you can sometimes get two or more harmonics to sound simultaneously, hence getting intervals of an octave, fifth, fourth, and third.
What is harmonics in a transformer?
When discussing harmonics in relation to transformers, generally you're thinking of harmonics in the current waveform - if it's a 60Hz transformer, the 2nd harmonic would be 120Hz, and is usually very high on transformer energization (referred to as inrush current). The nonlinearity of the core can result in core saturation under multiple different conditions, which tend to produce harmonic currents.
Can a transformer that operates on 60hz also operate on 50hz?
Yes, but it may generate more harmonics
