when the skin effect occurs ?

1 Answer

skin effect is occur at higher frequencies when skin depth is smaller
Like 0 like

Related

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

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

Description :  State the disadvantages of skin effect.

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. 

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

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 : 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

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

Ask a Question ← Prev Page Next Page →