# what is skin effect?

what is skin effect?

Skin effect is cause due to high frequency in skin effect the current flows more at the surface of conductor than the centre of conductor. Skin effect causes resistance of conductor to increase and inductance of conductor to decrease at high frequency.

Skin effect is occurs in conductor due to high frequency...as the frequency increases the resistance of conductor increases...skin effect means the current flow through the skin of conductor....as the frequency increases the skin width decrease...means for dc current their will be no skin effect...I hope you understand basic concept of skin effect

## Related Questions

Description : Skin effect is absent in which of the following transmission systems? A) Extra High Voltage (EHV) AC B) High Voltage Direct Current (HVDC) C) Both A and B D) None of these

Last Answer : Skin effect is absent in which of the following transmission systems? A) Extra High Voltage (EHV) AC B) High Voltage Direct Current (HVDC) C) Both A and B D) None of these

Description : Skin effect occurs when a conductor carries current at_____ frequencies.

Last Answer : Skin effect occurs when a conductor carries current at high frequencies.

Description :  State the disadvantages of skin effect.

Last Answer : Disadvantages of skin effect:- 1. Full cross section of conductor is not utilized, Therefore effective area of conductor reduces so its resistance increases. 2. Due to increase in resistance, copper ... increases (Since Voltage drop = IR ) 5. So voltage regulation becomes poor (increases)

Description : State the meaning of skin effect and how can it be minimised.

Last Answer : Meaning of skin effect :  When alternating current flows through conductor it has tendency to flow away from center of conductor. i.e. maximum current density is near skin of conductor and goes on ... whenever possible as Skin effect is absent (Since frequency 0) instead of A.C. supply.

Description : The skin effect in conductors is due to non uniform distribution of current in it and major portion of current is near the _______ of conductor.  (1) Surface (2) Center (3) Complete cross section area (4) Axis

Last Answer : The skin effect in conductors is due to non uniform distribution of current in it and major portion of current is near the Surface of conductor.

Description : Explain hysteresis loss, eddy current loss and skin effect limitations with reference to magnetic material.

Last Answer : Hysteresis loss: Hysteresis loss is a loss which occurs due to the friction of magnetic domain due to the change in magnetic field in ferromagnetic material like iron. Hysteresis loss causes power loss ... loss in transformer is given by, We=Kef2Kf2Bm2watts Skin effect limitations:

Description : explain skin effect in copper interconnects. what are the various ways of reducing this effect?

Last Answer : Skin effect generally observed in ac conductor in transmission network, in skin the current flowing through outer layer of conductor is more than iner area of conductor thus we can say the ... for reducing this effect we can use boundel conductor or used hollow conductor for power transmission

Description : when the skin effect occurs ?

Last Answer : skin effect is occur at higher frequencies when skin depth is smaller

Description : Skin Disorder

Last Answer : So you lost your crowning glory. You now have a lot in common with bowling balls and snow globes. Your head is literally a mirror to the world. Face it: you're bald. In medicine, baldness is classified ... that seem to not work. Who knows, you might be the next famous bald man to change the world.

Description : How To Make Skin Cream

Last Answer : This is how to make your own skin cream: Materials: 2 1/2 ounces (weight) beeswax 4 ounces (weight) lanolin 2/3 cup baby or mineral oil 3/4 cup water 1 teaspoon borax (sodium borate, CP) ... forms, stir slowly until the mixture cools to 100 degrees F. Pour the cream into small, wide-mouth jars.

Description : How To Make Rosewater Skin Lotion

Last Answer : Ingredients: Rejuvinates and smooths your skin. 1 tbsp Rose water 3 tbsp rose soluble 2 cups water 2 tbsp glycerin 2 capsules vitamin E (800 IU's) 1 tbsp honey 1 tbsp coconut oil 1 tbsp olive oil ... in a small bowl. Mix well. To use, apply to your skin with cotton balls. Refrigerate between uses.

Description : How To Make A Strawberry Skin Moisturizer

Last Answer : Ingredients: 1 tbsp each: olive, coconut and vegetable oils 2 tbsp mashed strawberries (Optional) 1-2 drops Vitamin E oil Instructions: Mix all ingredients in a small bowl. Store in the refrigerator in a covered jar between uses.

Description : How to Remove a Staple from Your Skin

Last Answer : How to Remove a Staple from Your Skin Being a handyman, you must be used to having a stapler gun or staple in your hand and using it properly. Sometimes, though, your hand can slip and you'll ... doctor if you see other painful effects, such as swelling, redness or pus. The wound might be infected.

Description : How to Remove a Fish Hook from Your Skin

Last Answer : How to Remove a Fish Hook from Your Skin If you're into fishing, it's likely that you're going to put the hook not through a fish, but somewhere else-like your hand or your back, for instance ... you're fishing: be calm and steady. It's a painful ordeal, but extracting it properly is very important.

Description : How to Lighten Skin ?

Last Answer : How to Lighten Skin A lighter skin tone is viewed as a thing of beauty by many. Those with fair complexions are envied, since they are known to attract dates and garner respect, just with ... in the process. The operation ensures a fair complexion after the procedure, however, it's quite expensive.

Description : Healthy Skin

Last Answer : Healthy Skin Healthy Skin Nobody really likes looking like last year's luggage. Nearly everyone with a crocodile complexion could have prevented it. Let's look at how. The two most damaging things you can do to ... we all know, you can "lose your hide" in a divorce. Save your skin ahead of time!

Description : 5 tips for healthy skin

Last Answer : Don't have time for intensive skin care? Pamper yourself with the basics. Good skin care and healthy lifestyle choices can help delay the natural aging process and prevent various skin problems. Get started ... make time to do the things you enjoy. The results might be more dramatic than you expect.

Description : Skin Care

Last Answer : Skin Care Are you feeling bad about yourself when people try to avoid your touch just because your skin is oily or dry? Do you wish to look bold and beautiful even after crossing 30s? Then, moisturizing ... glowy and shiny smooth skin is no more a dream. You can have it by following this guide.

Description : How to care for your skin during the cold season?

Last Answer : How to care for your skin during the cold season? The skin of our hands and face is influenced by climatic conditions. The cold on the face and hands constricts blood vessels, so blood circulation is ... is necessary to drink a sufficient amount of liquid - at least 1.5 liters of water per day.

Description : Structure and Function of the Skin

Last Answer : The skin is the human body's its largest organ, covering 1.6 m2 of surface area and accounting for approximately 16% of an adult's body weight. In direct contact with the outside environment, ... ridge, and the portion of the dermis that projects into the epidermis is called the dermal papilla.

Description : Is eating raw garlic good for skin?

Description : Under Following conditions Ferranti effect occurs:

Last Answer : Under Following conditions Ferranti effect occurs:  1. When there is no load on transmission line (IL = 0) 2. When There is no load at receiving sub-station or Lightly loaded 3. When ... VR) is found to be greater than sending end voltage (VS). This phenomenon is known as Ferranti effect.

Description : Explain in brief ‘Hall effect sensor’.

Last Answer : Working: * Working principle of a Hall effect sensor is that if strip of conducting material carries a current in presence of transverse magnetic field as shown fig . * The difference of ... with Hall strip. * When a transverse magnetic field passes through the strip, the voltage difference

Last Answer : The phenomenon of ionization of surrounding air around the conductor due to which luminous glow with hissing noise is rise is known as the corona effect.

Description : State seeback effect. Describe the working of thermocouple.

Last Answer : Seebeck effect: Seebeck effect states that whenever two dissimilar metals are connected together to form two junctions out of which, one junction is subjected to high temperature and another is subjected to ... both the junctions a very low emf is produced which causes a current in the circuit.

Description : What is piezoelectric effect? Name two piezoelectric material.

Last Answer : piezoelectric effect: Piezoelectric effect can be stated as follows: when a pressure or force or vibration is applied to crystalline material like quartz crystal or crystalline substances, then ... crystal: Quartz crystal ,Rochelle salt 2) Synthetic crystals : Barium Titanate, Lithium sulphate

Description : Explain magnetic effect employed in measuring instrument.

Last Answer : Magnetic Effect:  I) In PMMC meters:  ➢ When a current is passed through a conductor, magnetic field is produced round the conductor. Due to this field when current ... field it experiences a mechanical force.  Examples: Electrodynamometer type instruments, Induction type instrument.

Description : Define junction field effect transistor (JFET) and give an example.

Last Answer : Junction Field-Effect Transistor: It is a semiconductor device having three terminals, namely Gate, Drain and Source, in which the current flow is controlled by an electric field set up by an external voltage applied ... : i) n-channel JFET and ii) p-channel JFET Examples of JFET: BFW 10, BFW 11

Description : Ferranti Effect is more pronounced when ___________ A) the line is longer and the voltage applied is higher B) the line is shorter and the voltage applied is lower C) the line is shorter and the voltage applied is higher D) none of these

Last Answer : Ferranti Effect is more pronounced when the line is longer and the voltage applied is higher

Description : what is Ferranti effect?

Last Answer : Ferranti effect is the increase in voltage at receiving end than sending end means sending end voltage is less than receiving end . It is occurs in long transmission line when the line is lightly loaded or at no load.

Description : How Does Obesity Effect Diabetes ?

Last Answer : How Does Obesity Effect Diabetes Obesity and diabetes are two diseases that are cause for serious concern among many Americans. Every year, more and more overweight and obese people run the risk of developing ... , you can win the battle against obesity, and save your own life at the same time.

Description : Piezo-electric effect

Last Answer : Piezoelectric Effect is the ability of certain materials to generate an electric charge in response to applied mechanical stress. The word Piezoelectric is derived from the Greek piezein, which means to squeeze or ... Storage Temperature Range: -55 to + 125°C Insulation Resistance: 500 M ohms

Description : State the meaning of ferranti effect and proximity effect.

Last Answer : i) Ferranti effect : When long distance transmission is lightly loaded or there is no load condition than it is observe that receiving end voltage (VR) is found to be greater than sending end ... on conductor causes current in each conductor is re-distributed. This is known as proximity effect.

Description : Define armature reaction in an alternator. Explain the effect of armature reaction at various P.F. of loads of alternator.

Last Answer : Armature Reaction: The effect of armature flux on main flux is called as armature reaction.  Armature Reaction at Various Power Factors: When armature is loaded, the armature flux modifies ... lagging p.f. For capacitive loads the effect of flux is partly distorting and partly strengthening.

Description : List out factors affecting proximity effect.

Last Answer : Factors affecting proximity effect: 1. Conductor size (diameter of conductor) 2. Frequency of supply current. 3. Distance between conductors. 4. Permeability of conductor material

Description : Analyze the effect of supply voltage on performance of LED as regards current, Lumen output, efficacy and life.

Last Answer : 1) Effect on Current:- In LED current depends upon supply voltage, if voltage get changes then current also change but this change in current will be control by resistors which are connected in series.  2) ...   4) Effect on Life:- If supply voltage is not stable then life of LED get reduced.

Description : With the help of N-channel JFET describe the effect of input voltage VGS on output current ID.

Last Answer : Working of N channel FET: * When a voltage is applied between the drain and source with a DC supply (VDD), the electrons flows from source to drain through narrow channel ... where the channel gets completely blocked and the drain current becomes zero is called pinch- off voltage.

Description : When does the Body bias effect occur in an n-channel MOSFET?  A) When the Source voltage is less the Bulk voltage B) When the Source voltage is equal to or greater the Bulk voltage C) When the Drain voltage is equal to the Bulk voltage D) When the Gate voltage is equal to the Bulk Voltage

Last Answer : When does the Body bias effect occur in an n-channel MOSFET?  A) When the Source voltage is less the Bulk voltage B) When the Source voltage is equal to or greater the Bulk voltage C) ... voltage is equal to the Bulk voltage D) When the Gate voltage is equal to the Bulk Voltage

Description : The effect of negative feedback on distortion and bandwidth is A) Both distortion and bandwidth get decreased B) Both distortion and bandwidth get increased C) Distortion is reduced and bandwidth is increased D) Distortion is increased and bandwidth is decreased

Last Answer : The effect of negative feedback on distortion and bandwidth is Distortion is reduced and bandwidth is increased

Description : The effect of increasing load on a synchronous motor running with normal excitation is (A) Increase both its Ia and power factor. (B) Decrease Ia, but increase power factor. (C) Increase Ia, but decrease power factor (D) Decrease both Ia and power factor.

Last Answer : The effect of increasing load on a synchronous motor running with normal excitation is Increase Ia, but decrease power factor

Description : The effect of a finite gain of an operational amplifier used in an integrator is that (A) it would not integrate (B) the slope of the output will vary with time (C) the final value of the output voltage will reduce (D) there will be instability in the circuit

Last Answer : The effect of a finite gain of an operational amplifier used in an integrator is that there will be instability in the circuit

Last Answer : Effect of a force on a body depends upon magnitude, direction, position or line of action.

Last Answer : The chemical effect of current is used in D.C. ammeter hour meter.

Description : Diversity factor has direct effect on the?

Last Answer : Diversity factor has direct effect on the fixed cost of unit generated.

Description : What is meant by body effect in MOSFET?

Description : What are the applications of Hall effect?

Last Answer : Hall effect transducer find application 8n instruments that measure magnetic field with small flux densities.

Description : Difference between MOSFET and FET

Description : Explain the characteristics of inductor to be considered while designing it. What is the effect of over current and increase in temperature on inductor.

Description : Skin effect results in : (A) Reduced effective resistance but increased effective internal reactance of the conductor (B) Increased effective resistance but reduced effective internal ... effective internal reactance (D) Increased effective resistance as well as effective internal reactance

Description : Skin effect in conductors would reduce effectively with increase in (A) Diameter of the conductor (B) Resistivity of the material used in the conductor (C) Frequency of the supply (D) Voltage of the power supply