104 views

1 Answer

Answer :

It is simply variable resistance create opposition to flow of current and decrease or increase the speed of fan
Like 1 like

Please log in or register to answer this question.

Related questions

228 views

Description : Why is a capacitor used in a ceiling fan ?

Last Answer : For splitting phase so that a rotating magnetic field will be produced & as per Lenz's law a torque will be created & rotor starts rotating. In single phase if capacitor is not used for split phase then a pulsating mag. field is produced which is unable to produce torque on rotor

3 answers
132 views

Last Answer : Capacitor use in fan is made up of dielectic material which is in semi solid material having high capacity.but generation of heat in capacitor the semi solid material converted into dry solid because of ... capacity becomes lower and lower so for good result of our fan we have to change it.

1 answer
10 views

Description : How to Install a Ceiling Fan

Last Answer : How to Install a Ceiling Fan The first step in installing is to determine the most appropriate distance between the fan blades and your floor. You will need a measuring device in order to accurately do ... respective house wires. The fan must be grounded to the metal box and to the fan itself.

1 answer
10 views

Description : How to Fix a Noisy Ceiling Fan

Last Answer : How to Fix a Noisy Ceiling Fan Ceiling fans are great additions to any room: Not only do they take up minimal space, but they also provide that much-needed cool breeze in any part of the room on warm ... s a chance that it's a production glitch. Check with the ceiling fan's company as a last resort.

1 answer
9 views

Description : How to Balance a Ceiling Fan

Last Answer : How to Balance a Ceiling Fan Compared to regular electric fans, ceiling fans are preferred by many people because of better air distribution and their stylish look. It's nice to walk in and turn on ... their ceiling fan to perform poorly. Just follow these easy steps and yours will work just fine.

1 answer
15 views

Description : How to wire a Ceiling Fan ?

Last Answer : How to wire a Ceiling Fan To wire a ceiling fan is a relatively easy project. Usually, it is similar to working on replacing an existing light fixture. However, you will also need to check the ... have a loose wire connection. In case your fan vibrates or shakes, check if the blades are balanced.

1 answer
102 views

Last Answer : In a ceiling fan employing capacitor run motor secondary winding surrounds the primary winding.

1 answer
181 views

Last Answer : The wattage rating for a ceiling fan motor will be in the range 50 to 150 W .

1 answer
69 views

Description : Enlist names of regulator IC’s .

Last Answer : 1. Fixed Voltage Regulators IC - a. Positive voltage regulator IC’s - 78XX series eg. 7805, 7812 etc.  b. Negative voltage regulator IC’s - 79XX series eg. 7905, 7912 etc.  2. Adjustable Voltage Regulator - LM317 is example of positive adjustable voltage regulator.

1 answer
70 views

Description : What is regulator ? State its need.

Last Answer : A voltage regulator is a circuit or device designed to deliver a constant voltage at its output regardless of changes in ac supply voltage and load current. Need:- A voltage regulator is one ... unexpected result or damage one of the components in the circuit, hence voltage regulator is needed.

1 answer
134 views

Description : what is linear regulator?

Last Answer : linear regulator video

2 answers
868 views

Description : Describe the functional pin diagram of regulator IC 78XX and 79XX.

Last Answer : IC 78XX: Explanation: 78XX series of IC regulators is representative of three terminal devices that are available with several fixed positive output voltages. It has three terminals labeled ... can also use 25μF aluminum electrolytic capacitor. Values given may be increased without limit. 

1 answer
2.7k views

Description : A zener voltage regulator has load requirements of 12 V and 2 A. The zener diode minimum current requirement is 0.2 A. The minimum voltage at input is 24 V. What is the required value of series resistance with source? A) 5.45 Ω B) 6 Ω C) 7.2 Ω D) 6.38 Ω  

Last Answer : A zener voltage regulator has load requirements of 12 V and 2 A. The zener diode minimum current requirement is 0.2 A. The minimum voltage at input is 24 V. What is the required value of series resistance with source? A) 5.45 Ω B) 6 Ω C) 7.2 Ω D) 6.38 Ω  

1 answer
108 views

Last Answer : The voltage regulation in magnetic amplifier type voltage regulator is effected by varying the reactance.

1 answer
112 views

Description : What are the disadvantages of the linear regulator? how are they overcome in the switching regulator? What is continuous and discontinuous mode switching regulator?

Last Answer : Disadvantages of the linear regulator: Linear regulator waste power in the form of heat. Linear regulator has very low efficiency. Linear regulator cannot be used for the step ... between continuous mode and discontinuous mode switching regulator.

1 answer
14 views

Description : How to Texture a Ceiling

Last Answer : How to Texture a Ceiling You're thinking of painting your ceiling, but you realize it still looks boring even with the lovely color you used. If you're an artistic person, why not texture your ... adding texture to it. As long as you follow this method, your ceiling will no longer look boring.

1 answer
12 views

Description : How to Remove Popcorn Ceiling

Last Answer : How to Remove Popcorn Ceiling Popcorn is yummy and delightful, but not when your ceiling starts to look like it. An unpleasant popcorn texture can ruin the look of a room, but you don't have to worry ... difficult chore, but when you see your ceiling smooth and neat, you'll feel that it's worth it.

1 answer
8 views

Description : Stretch ceiling. What to look for when choosing?

Last Answer : Stretch ceiling is a great view of interior decoration. It allows you to create a pleasant aesthetic environment and to hide pronounced surface defects. However, like any finishing material, solid artificial ... that will ensure the quality not only of the coating, but also of the installation work.

1 answer
27 views

Description : How to glue a ceiling plinth?

Last Answer : Ceiling plinth is used to decorate the angle between the wall and the ceiling. This decorative element is also called fillet. Installation is carried out after leveling the walls and ceiling. We ... After completing the process, the ceiling plinth is painted, usually in the color of the ceiling.

1 answer
5 views

Description : Ceiling lamps. What are they and how to choose?

Last Answer : Well-chosen lighting can stimulate productive activities and can create an intimate and relaxing atmosphere. The variety of ceiling lights is not limited to traditional center chandeliers. In addition ... Their placement along the perimeter of the bathroom will visually make the room more spacious.

1 answer
10 views

Description : Which ceiling to choose for the bathroom?

Last Answer : Which ceiling to choose for the bathroom? The bathroom is a room with high humidity, it requires special attention when installing ventilation, choosing appropriate furniture, materials for wall and ceiling ... ceiling an ideal solution for your bathroom. But the choice, of course, is yours!

1 answer
20 views

Description : How to choose a modern stretch ceiling?

Last Answer : How to choose a modern stretch ceiling? Renovation in an apartment, which many consider to be quite messy and troublesome, today can be easily turned into a less dusty procedure. To do this ... , stretch ceilings from Swiss, Russian and Chinese manufacturers are in great demand on the market today.

1 answer
4 views

Description : Which ceiling is suitable for a bathroom?

Last Answer : Which ceiling is suitable for a bathroom? If you want to make repairs in the bathroom at an affordable price and we are not talking about long-term construction, then a rack suspended ceiling ... colors and shades of such ceilings will allow you to create your own unique design in the premises.

1 answer
110 views

Description : State function of i) Ceiling rose ii) Conduit 

Last Answer : Function of Ceiling rose: Output connection for ceiling fan or tube.  Function of Conduit – To run the wires from switch board to appliances. 

1 answer
6 views

Description : FAN – Trouble Shooting –

Last Answer : Ans a. Replacement of Regulator b. Replacement of Capacitor. c. Dismantle. d. Erect a Fan e. Cleaning.

1 answer
7 views

Description : How to Install a CPU Fan ?

Last Answer : How to Install a CPU Fan The central processing unit (CPU) is one of the parts of your computer that can get easily damaged or compromised because of high temperatures. Electricity passing through ... can install a new aftermarket fan to your CPU and be more efficient with your computing tasks.

1 answer
7 views

Description : Which supply and exhaust fan to choose for your home?

Last Answer : Usually, "European-style renovation" begins with the installation of double-glazed windows and careful closure of all existing ventilation openings in the room. It is interesting, but few people know that ... street, for which fans are used, which are inserted directly into the window or window.

1 answer
101 views

Description : State suitable single phase motor for following applications: (i) Table fan (ii) Mixers and Grinders

Last Answer : Application Suitable Single Phase Motor Table Fan 1) Capacitor split phase motor 2) Capacitor start capacitor run motor Mixers and Grinders 1) Universal motor 2) A.C. Series motor

1 answer
797 views

Description : Explain any two energy conservation techniques in fan.

Last Answer : Following are energy conservation techniques in Fans : 1) Use the electronic regulators instead of conventional regulator: Function of regulator is to control the speed of the fan. The conventional regulators ... 't forget to properly maintain your electric fan and keep it in good working order. 

1 answer
2 views

Description : Which, in your opinion is the best Sylvester McCoy (Doctor #7) Doctor Who episode?

Last Answer : You might be being a little too Anglo-specific there, friend. Me?, I can’t say that I remember any of his. But I certainly remember the man himself.

1 answer
0 views

Description : Which, in your opinion is the best Sylvester McCoy (Doctor #7) Doctor Who episode?

Last Answer : You might be being a little too Anglo-specific there, friend. Me?, I can’t say that I remember any of his. But I certainly remember the man himself.

1 answer
1 view

Description : What famous person do you consider eye candy?

Last Answer : Most of them… XD One of my favorite tags to use on Tumblr: http://macbean.tumblr.com/tagged/hnnngh!

1 answer
192 views

Description :  In ceiling fan the angle between auxiliary winding and main winding is . (A) 0 degree (B) 90 degree (C) 180 degree (D) 270 degree

Last Answer : The angle between the windings is 90 degrees

1 answer
203 views

Description : which motor is use in ceiling fan?

Last Answer : Capacitor start capacitor run induction motor

1 answer
3 views

Description : The device used to change the speed of an electric fan is - (1) Amplifier (2) Regulator (3) Switclh (4) Rectifier

Last Answer : (2) Regulator Explanation: Regulator is to adjust the voltage across the motor of the fan.

1 answer
3 views

Description : The device used to change the speed of an electric fan is – (1) Amplifier (2) Regulator (3) Switch (4) Rectifier

Last Answer : (2) Regulator Explanation: A voltage regulator is designed to automatically maintain a constant voltage level. A voltage regulator maybe a simple "feedforward" design or may include negative feedback ... power supplies where they stabilize the DC voltages used by the processor and other elements.

1 answer
19 views

Description : The device used to change the speed of an electric fan is (1) Amplifier (2) Regulator (3) Switch (4) Rectifier

Last Answer : Regulator

1 answer
0 views

Description : Write the similarities and differences between the motion of a bicycle and a ceiling fan that has been switched on.

0 answers
1 view

Description : How do I make my ceiling fan stop making weird noises?

Last Answer : answer:You may need to balance the blades. Usually if the blades are off balance the fan makes noise. If that doesn’t stop the noise, I’d replace the ceiling fan.

1 answer
0 views

Description : What's a good trick for remembering the directions my ceiling fan turns in order to generate cold air?

Last Answer : Maybe a little set of a red and blue arrow placed on one of the blades, red facing the way it turns to warm and blue pointing the way it turns to cool :)

1 answer
0 views

Description : Need your thoughts on this ceiling fan and chandelier. Details inside?

Last Answer : It’s hard to tell with no context, but to me it would seem strange to have an industrial looking fan and a Maria-Theresa crystal chandelier occupying the same space.

1 answer
2 views

Description : How much energy does a ceiling fan use?

Last Answer : that depends on the model

1 answer
2 views

Description : How much should it cost to replace a bathroom ceiling fan?

Last Answer : 4 hours labor is ridiculous. As long as you know where the fuse box is and are able to shut off power to the fan before removal, it’s actually very easy. It’ll probably take 45 minutes or so for the whole procedure.

1 answer
2 views

Description : Does using a ceiling fan make a hot room warmer or cooler?

Last Answer : the air it’s blowing might be hot but the wind it creates blows your body heat away from your body making you feel cooler I think

1 answer
0 views

Description : Is it safe to hang a lightweight ceiling fan from electrical box ears?

Last Answer : answer:That is what I would do, or at least take out the box and bring it to Home Depot and ask them/ get a new one at the same time. You don't want to risk your safety or the safety of ... easy swap out if you have a flashlight or have secured the wire ends/cut the power to that box. Good luck.

1 answer
0 views

Description : How high should the ceiling fan be placed ?

Last Answer : The ceiling fan has to be placed 2.8 meters or 9 feet above.

1 answer
1 view

Last Answer : It depends on your choice. I think the ceiling will be good.

1 answer
2 views

Description : How to install a ceiling fan to a sloped ceiling (10' rise - 12" run)

Last Answer : Need Answer

1 answer
...