The second harmonic distortion is defined as the A) Ratio of amplitude of second harmonic component in the output to that of the fundamental frequency B) Harmonic distortion due to only second harmonic component C) Sum of distortion of first and second harmonic components in the output
Last Answer : The second harmonic distortion is defined as the Ratio of amplitude of second harmonic component in the output to that of the fundamental frequency
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asked
Jun 18, 2018
by
anonymous
To get minimum harmonic distortion in the output, a 3-Ф to 3-Ф cyclo-converter requires : (A) 12 SCRs (B) 18 SCRs (C) 36 SCRs (D) 72 SCRs
Last Answer : To get minimum harmonic distortion in the output, a 3-Ф to 3-Ф cyclo-converter requires : 36 SCRs
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93 views
1 answer
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Apr 30, 2018
by
anonymous
The time period of third harmonic of power supply frequency, in milliseconds, is (A) 20 (B) 3.33 (C) 6.66 (D) 60
Last Answer : The time period of third harmonic of power supply frequency, in milliseconds, is 6.66
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540 views
1 answer
asked
Apr 28, 2018
by
anonymous
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The fractional-pitch used for eliminating 7th harmonic from the emf wave of an alternator is (A) 2/3 (B) 5/6 (C) 7/8 (D) 6/7
Last Answer : The fractional-pitch used for eliminating 7th harmonic from the emf wave of an alternator is 6/7
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494 views
1 answer
asked
Apr 28, 2018
by
anonymous
Explain the sinusoidal harmonic reduction techniques for cylcoconverters.
Last Answer : sinusoidal
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68 views
1 answer
asked
Mar 11, 2018
by
anonymous
What is harmonic in power quality?
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59 views
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asked
Mar 10, 2018
by
anonymous
What do you mean by active filter? State its advantages over passive filter . Define pass band & stop band with respect to filter.
Last Answer : Active Filter: Active Filter is formed by using active element along with the passive components. Advantages of Active filter over Passive filter: High value of pass band gain can be obtained. It is ... pass band. Stop Band Filter: The frequency range which is attenuated is known as stop band.
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124 views
1 answer
asked
May 2, 2020
by
anonymous
Which capacitors are suitable for DC filter circuits?
Last Answer : Electrolytic capacitors are suitable for DC filter circuits.
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83 views
1 answer
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Mar 8, 2018
by
anonymous
write short notes on Low-pass filter.
Last Answer : low-pass filter (1) filter exhibiting frequency selective characteristic that allows low-frequency components of an input signal to pass from filter input to output unattenuated all high-frequency components are ... the bandwidth of the filter. A filter whose impulse response is a low-pass signal.
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143 views
2 answers
asked
Oct 28, 2017
by
anonymous
derive an expression for the Ripple factor in a full wave rectifier using inductor filter
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Describe the operation of inductor filter with help of circuit diagram and waveforms.
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Obtain the Ripple factor of a full wave rectifier with shunt capacitor filter.
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Draw the circuit diagram for CLC or Pi filter and state it's ripple factor.
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Describe the operation of shunt capacitor filter with the help of circuit diagram and waveforms.
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Describe the operation of shunt capacitor filter with the help of circuit diagram and waveforms.
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Oil Filter Wrench
Last Answer : They say that there's a tool for every job, and using anything else other than it is essentially running the risk of either botching up the job or being less efficient with it. For changing ... driver. When you turn the driver counterclockwise, the gears cause the prongs to clench the filter body.
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Oil Filter Ratings
Last Answer : When grading oil filters, three main criteria must be considered: single-pass efficiency, multiple-pass efficiency, and the micron rating for particle pass-through. Single-Pass Efficiency Single- ... using an ISO approved particle counting is used to determine the real efficiency of oil filters.
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1 answer
Oil Filter Manufacturers
Last Answer : Like most specialized equipments, an oil filter is only as good as its manufacturer. Over the years several oil filter manufacturers have made a name for themselves. Most of these did this by earning ... on dedicated vehicle or auto parts forums. Get opinion from them, as well as tips and advice.
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Oil Filter Cross Reference
Last Answer : For motorists and vehicle enthusiasts, getting replacement parts can pose a problem, especially if you live in a town where such parts are scarce. Sometimes, you'll have to use another part that looks like ... guide. It will save you trouble and money, and maybe, give you some knowledge on the side.
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8 views
1 answer
Oil Filter Comparison
Last Answer : It is a common fact that not everything is created equal. In a particular category, one will always have an advantage over the another, whether it's by price, quality, or over-all performance. Even ... . Don't reply on the overall rating, but rather, focus on the characteristics that matter to you.
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Oil Filter Changing
Last Answer : It is recommended that you change your oil filter once every six months (or every 6000 miles, whichever of the two comes first). Failure to do so will have your engine run the risk of degradation and failure ... the filter mounts to the engine. Screw the new filter in place. Put in the new oil.
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How to Replace an Oil Filter
Last Answer : How to Replace an Oil Filter Oil changes may seem cheap, but if you calculate the cost of every oil change you've had at a gas station or a garage, you'll have big savings if you do it on your ... have to pay a few extra dollars for someone to perform a maintenance task that you can do on your own.
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asked
May 11, 2021
by
anonymous
How to Filter Water
Last Answer : How to Filter Water Drinking clean water is an important part of daily living. It helps keep us healthy and strong by ensuring that our water is clean. There are many pollutants out there affecting our water, ... water will come out of it. Be sure to have a receptacle for the water at the ready.
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6 views
1 answer
asked
May 10, 2021
by
anonymous
How to Change a Furnace Filter ?
Last Answer : How to Change a Furnace Filter Every device in your home that has something to do with cooling, heating, or ventilation must be kept clean. Your home furnace filters help in improving the quality of the ... every 3-4 months. With these steps, you can easily replace the furnace filter in your home.
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5 views
1 answer
asked
May 9, 2021
by
anonymous
need of rectifier and filter.
Last Answer : Need of rectifier: Every electronics circuit needs a D.C. power source for its operation. The rectifier circuit is used to convert A.C. supply to unidirectional pulses . Need of filter: A filter ... only the D.C. components to reach the load. So filter is used to provide ripple free output.
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59 views
1 answer
asked
Aug 19, 2019
by
anonymous
What is the function of an electrical filter ?
Last Answer : Filter separates different components that are mixed together. Electrical filter can separate different frequency components. Electrical filters are the electrical circuits which are use to remove unwanted frequency components from the signal.
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5.1k views
1 answer
asked
Jun 1, 2019
by
anonymous
State any four advantages of LC filter.
Last Answer : 1. The choke input (LC) filter has a high output D.C voltage. 2. It has no loading effect on the rectifier and power transformer. 3. The diode does not have to carry surge currents. ... effect on the rectifier and power transformer. 7. It has better voltage regulation than that of π filter.
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453 views
1 answer
asked
Sep 5, 2018
by
anonymous
Compare RC and LC filter.
Last Answer : RC filters LC filters The RC filter is only useful for small load currents. The LC filters are useful for heavy load currents. More power dissipated in RC filter. Less power ... RC is fine for filtering low power signals. LC is fine for filtering high power signals.
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144 views
1 answer
asked
Sep 4, 2018
by
anonymous
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What is the convolution filter?
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85 views
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asked
Mar 11, 2018
by
anonymous
Explain design constraint of filter inductor design.
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58 views
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Mar 10, 2018
by
anonymous
How do I forward emails from one sender to someone else in Gmail?
Last Answer : answer:In Gmail settings, click on the FILTERS tab and see how you can narrow it down to the ones you want to forward. Specifically you can filter on from / to / and words in the subject or body of the message.
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1 view
1 answer
asked
Mar 1
by
anonymous
How would I do this in a video editing program, and which one do I need?
Last Answer : Is it for display on a Web page, or on some other media? What media?
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2 views
1 answer
asked
Feb 27
by
anonymous
Can I cut charcoal filters to size?
Last Answer : Automiotive charcoal cansiters are filled with particles about 1mm across. Crack the case and they all fall out. Not sure what kind of filter you are talking about. There is a monolith type filter that looks ... . You can cut that shorter if you use a fine blade and don't care about smooth edges.
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1 view
1 answer
asked
Feb 27
by
anonymous
Harmonic suppressor connected to an antenna. A. Low-pass filter B. High-pass filter C. M-derived filter D. Constant-K
Last Answer : A. Low-pass filter
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1 answer
Harmonic suppressor connected to an antenna. A. High pass filter B. Low pass filter C. Tank circuit D. M-derived filter
Last Answer : B. Low pass filter
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1 answer
___ has a series RC combination in one arm and a parallel RC combination in the adjoining arm and used as a notch filter in harmonic distortion analyzer.
Last Answer : wein bridge
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3 views
1 answer
asked
Aug 18, 2021
by
anonymous
For a prototype low pass filter, the series and shunt elements are respectively _____.
Last Answer : For a prototype low pass filter, the series and shunt elements are respectively inductive and capacitive.
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2.7k views
1 answer
asked
May 29, 2018
by
anonymous
The ripple factor in an LC filter. (A) Increases with the load current (B) Increases with the load resistance (C) Remains constant with the load current (D) Has the lowest value
Last Answer : The ripple factor in an LC filter. Has the lowest value
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3.2k views
1 answer
asked
May 17, 2018
by
anonymous
The values of L and C for a low pass filter with cut off frequency of 2.5 KHz and operating with a terminated load resistance of 450 Ohm are given by (a) 57.3 mH; 0.283 μF (b) 28.66 μH; 0.14 μF (c) 114.64 mH; 0.566 mF (d) 50.23 mH; 0.632 mF
Last Answer : The values of L and C for a low pass filter with cut off frequency of 2.5 KHz and operating with a terminated load resistance of 450 Ohm are given by 57.3 mH; 0.283 μF
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416 views
1 answer
asked
May 16, 2018
by
anonymous
A band pass filter is that which
Last Answer : A band pass filter is that which passes signals between two frequency limits
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60 views
1 answer
asked
May 15, 2018
by
anonymous
Low pass filter with cut off frequency of 100 kHz and high pass filter with cut off frequency of 50 kHz are connected in tandem, the resultant filter is Low pass filter with cut off frequency of 100 kHz ... kHz Band pass filter with pass band from 50 kHz to 100 kHz. None of the above.
Last Answer : Low pass filter with cut off frequency of 100 kHz and high pass filter with cut off frequency of 50 kHz are connected in tandem, the resultant filter is Band pass filter with pass band from 50 kHz to 100 kHz.
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162 views
1 answer
asked
May 14, 2018
by
anonymous
Prior to sampling an anti-aliasing filter is used.
Last Answer : Prior to sampling an anti-aliasing filter is used. It is used to attenuate the high frequency component of the Signal
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53 views
1 answer
asked
May 12, 2018
by
anonymous
Rectification efficiency of a full wave rectifier without filter is nearly equals to: (1) 51% (2) 61% (3) 71% (4) 81%
Last Answer : Rectification efficiency of a fullwave rectifier without filter is nearly equals to: 81%
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383 views
1 answer
asked
Apr 9, 2018
by
anonymous
A twin T network is a filter of kind A) BEF B) LPF C) HPF D) BPF
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43 views
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asked
Apr 9, 2018
by
anonymous
Maximum phase distortion is encountered when using the filter approximation A) Elliptic B) Butterworth C) Chebyshev I D) Inverse Chebyshev
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59 views
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asked
Apr 9, 2018
by
anonymous
Angles in degrees of pole locations of 4th order Butterworth low pass filter approximation from either real axis are A) +45,-45,+30,-30 B) +67.5,-67.5,+45,-45 C) +30,-30,+22.5,-22.5 D) +67.5,-67.5,+22.5,-22.5
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asked
Apr 9, 2018
by
anonymous
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What notes of the scale do you raise to get the harmonic and melodic minors?
Last Answer : answer:You are correct. There are three minor modes. natural minor, harmonic minor and melodic minor. Natural minor stays with the key signature of the relative major (e.g., A minor has the same ... F# and G# respectively, and revert back to the naturals when descending). (Edit for clarity)
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1 answer
asked
Feb 27
by
anonymous
A particle in simple Harmonic Motion while passing through mean position will have a.Maximum kinetic energy and minimum potential energy b.Average kinetic energy and average potential energy c. ... energy d.Maximum kinetic energy and maximum e.Minimum kinetic energy and minimum potential energy
Last Answer : a. Maximum kinetic energy and minimum potential energy
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1 answer
asked
Feb 6
by
anonymous
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The periodic time of a body moving in Simple Harmonic Motion is a.Directly proportional to its angular velocity b.Directly proportional to the weight of the body c.Inversely proportional to ... d.Directly proportional to the momentum of swinging body e.Inversely proportional to the angular velocity
Last Answer : e. Inversely proportional to the angular velocity
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1 answer
asked
Feb 6
by
anonymous
A body in Simple Harmonic Motion will attain maximum velocity when it passes through a.Point of 0.75 amplitude b.Extreme point of the oscillation of L.H.S. c.Point of half amplitude d.Extreme point of the oscillation at R.H.S. e.Mean position
Last Answer : e. Mean position
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1 answer
asked
Feb 6
by
anonymous
