# Which material has low resistivity?

Which material has low resistivity?

done_all

Silver have lowest resistivity then copper then aluminium tungsten then iron...

## Related questions

Description : Define resistivity. State its unit.

Answer : Resistivity can be defined as the resistance of a conducting material per unit length with unit area of cross section. Its unit is ohm/meter

Description : Problems on resistance and resistivity

Answer : Problem on resistance and resistivity 1 : https://youtu.be/OqavD7OlZUs Problem on resistance and resistivity 2 : https://youtu.be/0eo8VO8cpwk Problem on resistance and resistivity 3 : https:// ... https://youtu.be/3neLRCTz0RQ Problem on resistance and resistivity 13 : https://youtu.be/vBCkvPOiztY

Description : Problem on resistance and resistivity 13

Answer : Problem on resistance and resistivity 13

Description : Problem on resistance and resistivity 12

Answer : Problem on resistance and resistivity 12

Description : Problem on resistance and resistivity 11

Answer : Problem on resistance and resistivity 11

Description : Problem on resistance and resistivity 10

Answer : Problem on resistance and resistivity 10

Description : Problem on resistance and resistivity 9

Answer : Problem on resistance and resistivity 9

Description : Problem on resistance and resistivity 8

Answer : Problem on resistance and resistivity 8

Description : Problem on resistance and resistivity 7

Answer : Problem on resistance and resistivity 7

Description : Problem on resistance and resistivity 6

Answer : Problem on resistance and resistivity 6

Description : Problem on resistance and resistivity 5

Answer : Problem on resistance and resistivity 5

Description : Problem on resistance and resistivity 4

Answer : Problem on resistance and resistivity 4

Description : Problem on resistance and resistivity 3

Answer : Problem on resistance and resistivity 3

Description : Problem on resistance and resistivity 2

Answer : Problem on resistance and resistivity 2

Description : Problem on resistance and resistivity 1

Answer : Problem on resistance and resistivity 1

Description : What factors affect resistivity?

Answer : 1)type of material 2)temperature 3)length and area of cross section of conductor

Description : What is the formula for resistivity?

Answer : Resitivity is the property of a material. It is given in ρ . R=ρ L/A is the formula. where , Resitance is directly proportional to Length & Inversely proportional to Area of ... the resistance offered by a conductor to the flow of current is called specific resistance or resistivity.

Description : What is the reciprocal of resistivity?

Description : resistivity of wire depend on?

Answer : Resitivity of wire depends on material, electrical resistance of that material, area of cross section and length.

Description :

Which material is having highest resistivity in ohm-metre at 20oC X10-8? A. Mercury B. Iron C. Tungsten D. Silver

Answer : Mercury material is having highest resistivity in ohm-metre at 20oC X10-8

Description : Materials, whose resistivity at very low temperatures plunges from a finite value to zero and remains there upon further cooling, are known as

Answer : Materials, whose resistivity at very low temperatures plunges from a finite value to zero and remains there upon further cooling, are known as Superconductors

Description : Define – resistance and resistivity. State relationship between them. Give one material having high resistivity.

Answer : Ans: Resistance and Resistivity: Resistance: It is the opposition offered by the conductor to the flow of current. Resistivity: It is property of the substance by virtue of which it opposes to ... high resistivity: Mica, Nichrom, Rubber, Glass, Plastic Porcelain, Dry wood, Insulating material etc.

Description : The resistivity of a semiconductor material increases as : (A) The temperature increases (B) The temperature decreases (C) The temperature remains constant (D) None of the above

Description :

Answer : Low resistivity materials are used in transformer, motor and generator windings, transmission and distribution lines, house wiring.

Description : A generating station which has a high investment cost and low operating cost is usually operated as  A) Peak load station B) Spinning reserve station C) Base load station D) None of the above

Description : Detrimental property of a material for shock load applications (a) High density (b) Low toughness (c) High strength (d) Low hardness

Description : Pressure Cooker cooks faster because (1) boiling point decreases with rise of pressure (2) it cooks the food at low pressure (3) higher temperature is attained for cooking (4) the material of the cooker is a good conductor

Answer : higher temperature is attained for cooking

Description : What is the correct sequence of the following materials in ascending order of their resistivity ?  1. Iron  2. Silver  3. Constantan  4. Mica  5. Aluminium  Select the correct answer using the codes given below :  (a) 2, 5, 1, 3 and 4  (b) 4, 5, 3, 1 and 2  (c) 2, 3, 1, 5 and 4  (d) 4, 5, 1, 3 and 2

Answer : What is the correct sequence of the following materials in ascending order of their resistivity ?  1. Iron  2. Silver  3. Constantan  4. Mica  5. Aluminium  Select the correct answer using the codes given below :  ... 1 and 2  (c) 2, 3, 1, 5 and 4  (d) 4, 5, 1, 3 and 2

Description : The resistance of a strip of copper of rectangular cross-section is 2Ω. A metal of resistivity twice that of copper is coated on its upper surface to a thickness equal to that of copper strip. The resistance of composite strip will be

Answer : The resistance of a strip of copper of rectangular cross-section is 2Ω. A metal of resistivity twice that of copper is coated on its upper surface to a thickness equal to that of copper strip. The resistance of composite strip will be 4/3Ω.

Description : Resistivity is usually expressed in terms of

Description : The hysteresis loop of magnetic material has an area of 5 cm2 with the scales given as 1 cm=2AT and 1 cm=50 mWb, at 50 Hz, the total hysteresis loss is  (A) 15 W (B) 20 W (C) 25 W (D) 50 W

Description : A cube of material of side 1 cm has a resistance of 0.002 ohm between its opposite faces. If the same volume of the material has a length of 8 cm and a uniform cross-section, the resistance of this length will be

Answer : A cube of material of side 1 cm has a resistance of 0.002 ohm between its opposite faces. If the same volume of the material has a length of 8 cm and a uniform cross-section, the resistance of this length will be 0.128 ohm.

Description : For which of the following reasons is plutonium-238 used for generating electricity on spacecraft? w) It is an alpha emitter with long half-life. x) It is a beta emitter with high specific power. y) It occurs abundantly in nature. z) It has low specific power.

Answer : ANSWER: W -- IT IS AN ALPHA EMITTER WITH LONG HALF-LIFE.

Description : 1. Which material is very hard and very ductile? 2. Which is called a ‘banker’s cheque’ ? 3. With Which game/sport is ‘Popping crease’ associated? 4. Which lake in India has the highest water salinity? 5. In which year did the Peshwa became the official head of Maratha administration? 6. Bhopal gas tragedy struck in the year 1984 due to the leakage of which gas? 7. Which was an associate State of India before becoming a full fledged State? 8. Einstein’s mass energy relation is given by which expression? 9. Which is the first company-managed major port in India? 10. Which Governor of Bengal committed suicide in 1774 ? 11. Pulitzer prize is awarded for outstanding work in which field? 12. Bouncing of cheques has become an offence. What is the punishment for the same? 13. All of the organisms living in a particular area, what do they make up? 14. How can fertility of soil be improved? 15. By whom was the Vernacular Press Act was passed? 16. By whom is Recognition to a political party accorded? 17. Which was the scientist who was responsible for the rejection of vital force theory? 18. Which award is associated with Agriculture? 19. What type of farming is practised in the densely populated regions of the world? 20. In which year Delhi became the capital of India?

Answer : Answer : 1. Nichrome 2. Demand draft 3. Cricket 4. Sambhar 5. 1748 A.D. 6. Methyl-iso-cyanate 7. Sikkim 8. E = mc2 9. Ennore 10. Robert Clive 11. Literature and Journalism 12. 6 ... 15. Lord Lytton 16. By the Election Commission 17. Lavoisier 18. Bourlog Award 19. Intensive farming 20. 1911

Description :

A material has conductivity of 10–2 mho/m and relative permittivity of 4. The frequency at which the conduction current in the medium is equal to the displacement current, is (a) 450 MHz (b) 900 MHz (c) 45 MHz (d) 90 MHz

Description : A transformer has a turns ratio of two to one. If a 100 ohm resistor is connected on the high side, its resistance as measured on the low side would be: w) 25 ohms x) 50 ohms y) 100 ohms z) 400 ohms

Description : Nitrous oxide, commonly called laughing gas, has been a matter of concern to environmentalists recently because: w) it is thought to cause cancer at low concentrations. x) it produces photochemical smog. y) it is a greenhouse gas. z) none of the above

Description : A teacher has serious defect is he/she Options: A) is physically handicapped B) belongs to low socio-economic status C) has weak personality D) has immature mental development

Answer : D) has immature mental development

Description : Water is not suitable as a calorimetric substance because it : (1) has high specific heat (2) is a good conductor (3) has high boiling point (4) low latent heat of vapourization

Answer : has high specific heat

Description : When hot liquid is poured into a thick glass tumbler, it cracks because glass : (1) is a bad conductor of heat so only inner surface expands (2) has high temperature coefficient of expansion (3) has a very low specific heat (4) has low temperature coefficient of expansion

Answer :  is a bad conductor of heat so only inner surface expands

Description : Red light is used for signals because it has (1) long wavelength (2) high intensity (3) high frequency (4) low refraction in the medium

Description : The snow on the mountains does NOT melt all at once when it is heated by the sun because: (1) it becomes very hard (2) it reflects most of the heat from the sun (3) it has a low specific heat capacity (4) it has a high latent heat of fusion

Answer : it reflects most of the heat from the sun

Description : A low noise amplifier has an effective noise temperature of 50 k. The absolute noise figure is

Answer : A low noise amplifier has an effective noise temperature of 50 k. The absolute noise figure is 1.172

Description :

Answer : A low-loss transmission line has  R<<ωL; G<<ωC.

Description :

Answer : A synchronous machine with low value of short-circuit ratio has lower stability limit.

Description :

### Resistivity - Fundamentals of Electrical Engineering

Answer : Resistivity or specific resistance

Description :

Answer : Resistivity of electrical conductors is most affected by temperature.

Description :

Answer : The resistivity of a metal is a function of temperature because the amplitude of vibration of the atoms varies with temperature.

Description :

Answer : Addition of 0.3 to 4.5% silicon to iron increases the electrical resistivity of iron.

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