56 views
in Electric Power Distribution by

1 Answer

0 votes
by

When a conductor carries more current on the surface as compared to core, it is due to skin effect.

Related questions

1 answer 42 views

Heat in a conductor is produced on the passage of electric current due to?

asked Mar 25, 2018 in Basic concepts by Shimroz123
1 answer 20 views

When electric current passes through a metallic conductor, its temperature rises. This is due to?

asked Mar 25, 2018 in Basic concepts by Shimroz123
1 answer 20 views

How does the resistance of a conductor compare to that of an insulator?

asked Jun 29 by Shimroz123
1 answer 31 views

When secondary of a current transformer is open-circuited its iron core will be?

asked Mar 19, 2018 in Transformer by Shimroz123
1 answer 18 views

The insulation on a current carrying conductor is provided?

asked Mar 25, 2018 in Basic concepts by Shimroz123
0 answers 11 views

Explain why potential difference is necessary to produce current in a circuit.

asked Jun 29 by Shimroz123
0 answers 23 views

Current velocity through a copper conductor is

asked Mar 25, 2018 in Basic concepts by Shimroz123
1 answer 37 views

A ferrite core has less eddy current loss than an iron core because?

asked Mar 25, 2018 in Electrical Engineering by Shimroz123
2 answers 46 views

How to find total impedance Z, current I and Impedance angle ?

asked May 30 by Shimroz123
1 answer 44 views

In an alternator at lagging power factor the generated voltage per phase as compared to that at unity power factor?

asked Mar 18, 2018 in Alternator by Shimroz123
1 answer 46 views

Is Aluminium a good conductor of electricity?

asked Mar 10, 2018 in Electric Power Distribution by Quiz
1 answer 56 views

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

asked Apr 29, 2018 in Electrical Engineering by Shimroz123
1 answer 142 views

Why ACSR conductor is used for overhead lines?

asked Mar 10, 2018 in Electric Power Distribution by Quiz
2 answers 4 views

State the significance of following terms : i) Hydrology ii) Surface run-off iii) Evaporation iv) Precipitation

asked Sep 7, 2018 by Shimroz123
1 answer 84 views

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

asked Apr 30, 2018 in Power system by Shimroz123
1 answer 13 views

The size of a transformer core will depend on?

asked Mar 19, 2018 in Transformer by Shimroz123
0 answers 18 views

Which is more temperature stable, a carbon-composition or a metal-film resistor? 

asked Jul 2 by Shimroz123
1 answer 446 views

A single core cable is designed to work for a single phase system with a peak voltage of 220 kV. The maximum permissible stress in the dielectric is not to exceed 20 kV/mm. For economical size, the overall core diameter of the cable is (A) 28.2 mm (B) 26.4 mm (C) 24.4 mm (D) 22.0 mm

asked Apr 28, 2018 in Electrical Engineering by Shimroz123
1 answer 18 views

The main purpose of using core in a transformer is to (A) decrease iron losses (B) eliminate magnetic hysteresis (C) reduce reluctance of the common magnetic circuit (D) prevent eddy current loss

asked Apr 28, 2018 in Electrical Engineering by Shimroz123
1 answer 11 views

The resistance of a conductor varies inversely as?

asked Mar 25, 2018 in Basic concepts by Shimroz123
1 answer 20 views

Why does the core of a transformer need to be laminated?

asked Mar 14, 2018 in Electrical Engineering by Quiz
1 answer 25 views

A sine wave voltage is applied across an inductor. When the frequency of the voltage is decreased, the current decreases.

asked Nov 23, 2017 in Electrical Engineering by James
1 answer 15 views

The thickness of insulation provided on the conductor depends on?

asked Mar 25, 2018 in Basic concepts by Shimroz123
1 answer 25 views

The current flow in a battery is due to ______ A) movement of ions B) movement of protons C) movement of holes D) movement of neutrons

asked Apr 29, 2018 in Electrical Engineering by Shimroz123
1 answer 24 views

A single core lead sheathed cable with two dielectrics of permittivity 4 and 3, respectively, are subjected to same maximum stress. If the conductor diameter is 1.5 cm, the outer diameter of the first dielectric is (A) 1.125 cm (B) 1.5 cm (C ) 2 cm (D) 8 cm

asked Apr 28, 2018 in Power system by Shimroz123
1 answer 49 views

In an AC. circuit, a low value of kVAR compared with kW indicates?

asked Mar 25, 2018 in Electrical Engineering by Shimroz123
1 answer 18 views

lf the wire which is vertical to this page has electron flow downwards the conductor will have

asked Apr 26, 2018 in Electrical Engineering by Shimroz123
1 answer 20 views

The core construction is like spokes of a wheel in following transformer:  (A) Berry Type Transformer (B) Core Type Transformer (C) Shell Type Transformer (D) None of the above

asked May 8, 2018 in Switchgear And Protection by Shimroz123
1 answer 16 views

Which have more free electrons: conductors or insulators? 

asked Jul 1 by Zeeshan
1 answer 21 views

SCR is more utilized as compared to Triac because it is

asked Apr 29, 2018 in Power Electronics by Shimroz123
1 answer 26 views

A 3 layer, total diameter of an ACSR conductor is 5 cm. Find the diameter of each strand?

asked May 8, 2018 in Electric Power Transmission by Shimroz123
1 answer 27 views

The resistance of a few meters of wire conductor in closed electrical circuit is?

asked Mar 25, 2018 in Basic concepts by Shimroz123
1 answer 52 views

A 40 kVA transformer has a core loss of 400 W and a full load copper loss of 800 W. The proportion of full load at maximum efficiency is

asked May 8, 2018 in Electric Power Transmission by Shimroz123
1 answer 24 views

A network is said to be under resonance when the voltage and the current at the network input terminals are (A) in phase (B) out of phase (C) in phase quadrature (D) in phase, and have equal magnitudes

asked Apr 28, 2018 in Network Analysis by Shimroz123
1 answer 13 views

In a metal conductor, what is a free electron?

asked Jun 29 by Shimroz123
1 answer 37 views

If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes?

asked Mar 25, 2018 in Basic concepts by Shimroz123
1 answer 25 views

Skin effect occurs when a conductor carries current at_____ frequencies.

asked Mar 25, 2018 in Electrical Engineering by Shimroz123
1 answer 9 views

Which is the best conductor: silver, carbon, or iron?

asked Jul 1 by Shimroz123
1 answer 21 views

The desirable properties of transformer core material are  (1) low permeability and low hysteresis loss. (2) high permeability and high hysteresis loss. (3) high permeability and low hysteresis loss. (4) low permeability and hysteresis loss.

asked May 1, 2018 in Electrical Machine by Shimroz123
1 answer 20 views

When current flows through heater coil it glows but supply wiring does not glow because?

asked Mar 25, 2018 in Basic concepts by Shimroz123
1 answer 10 views

List out any four effects of electric current used in measuring instruments & write name of meter working on it.

asked Sep 6, 2018 by Shimroz123

Welcome to electronics2electrical.com here you can ask questions related to electrical, electronics, mechanical, telecommunication, instrumentation, computer, mathematics, physics etc.
Be respectful to all the members. Do not copy and paste the answers from other websites which have copyright content. While asking question give full details about it.

Categories

Most popular tags

power motor dc circuit transformer voltage current used system phase resistance factor synchronous load ac energy induction electric generator series frequency between speed capacitor use electrical meter line difference control type mosfet transmission magnetic plant high single instrument bjt unit source advantages function diode and machine winding field define torque parallel amplifier supply shunt thyristor motors electricity arduino maximum time relay armature problem value on transformers types coil diagram state flow ratio material three formula starting direction theorem method emf operating efficiency digital wave microprocessor test instruments inductance loss measure operation connected signal low applications effect single-phase network temperature working constant losses different law wattmeter measuring compare controlled breaker drive device logic rc full switch flux wire resistivity disadvantages free of materials machines angle force converter conductor transistor gain open protection scr core measurement number bridge principle generators reactance circuits negative the friction iron loop short pole battery conservation steam resistors hysteresis computer using analog lines secondary station gate a rectifier inverter linear induced relays nuclear capacitance basic characteristics design direct work rotor electronics ammeter forces diesel damping rlc connection factors capacitors minimum insulation moving regulation running self systems air fault range main stability quality starter igbt eddy alternator ideal rl average 3-phase plants arc thermal error fuzzy biasing dielectric pressure balanced superposition errors copper rotation feedback impedance measured electronic electrons charge inductive transfer explain start off back curve over solar is three-phase tariff locomotive peak bias zener engineering commutator surge conductors rating universal potentiometer density permanent mechanical transducer capacity memory adc excitation two fuse pure harmonics application semiconductor inductor internal pmmc reaction welding resonance traction permeability breakers rms designed electromagnetic si generation brushes switching capacitive shaded rate 1 distribution resistor methods delta star oscillator reluctance simplification algebra 8085 boolean weston dynamometer insulating strength installation definition fuel heating earth units

8,450 questions

7,047 answers

132 comments

3,085 users

...