# Which material has low resistivity?

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Which material has low resistivity?

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

## Related questions

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Description : Define resistivity. State its unit.

Last 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

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Description : Problems on resistance and resistivity

Last 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

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Description : Problem on resistance and resistivity 13

Last Answer : Problem on resistance and resistivity 13

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Last Answer : Problem on resistance and resistivity 12

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Description : Problem on resistance and resistivity 11

Last Answer : Problem on resistance and resistivity 11

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Last Answer : Problem on resistance and resistivity 10

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Last Answer : Problem on resistance and resistivity 8

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Last Answer : Problem on resistance and resistivity 7

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Last Answer : Problem on resistance and resistivity 6

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Last Answer : Problem on resistance and resistivity 5

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Description : Problem on resistance and resistivity 2

Last Answer : Problem on resistance and resistivity 2

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Description : Problem on resistance and resistivity 1

Last Answer : Problem on resistance and resistivity 1

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Description : What factors affect resistivity?

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

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Description : What is the formula for resistivity?

Last 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.

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Description : What is the reciprocal of resistivity?

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Description : resistivity of wire depend on?

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

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Description : The material used for a fuse wire should have (a) high resistivity (b) high ductility (c) high melting point (d) low melting point

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Description : Dielectric (A) Is an electrical insulating material (B) Of low resistivity is preferred (C) Should have high thermal conductivity (D) Need not defy the corrosive action of chemicals

Last Answer : (A) Is an electrical insulating material

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Description : The insulating material should have (a) low permittivity (b) high resistivity (c) high dielectric strength (d) all of the above

Last Answer : (d) all of the above

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Description : The most malleable, ductile low resistivity material is (A) Copper. (B) Aluminium. (C) Silver. (D) Iron.

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

Last 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.

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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

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

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

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

Last 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

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Description : The resistivity of the material of a wire is 4 x 10-5 ohm-cm. If the resistance of the wire is 13 ohm and its diameter is 1 mm. Calculate the length of the wire.

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Description : The length of a wire is doubled and current through it is increased by a factor of 3/2 without any charge of temperature. The resistivity of the material of the wire (1) remains same (2) increase by a factor of 3 (3) decrease by a factor of 3 (4) increase by a factor of 2

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Description : The temperature (T) dependence of resistivity of materials A and material B is represented by fig (i) and fig (ii) respectively. Identify material A and material B. (i) material A is copper and ... A is nichrome and material B is germanium (iv) material A is copper and material B is nichrome

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Description : A material of resistivity 'ρ' is filed in space between two concentric spheres of radius a and b' uniformly (a < b), the resistance of this material will be (1) $$\frac{ρ}{4\pi (b+a)}$$ (2) $$\frac{ρ}{4\pi}(\frac{1}{b^2} ... \frac{1}{b}-\frac{1}{a})$$ (4) $$\frac{ρ}{4\pi}(\frac{1}{a}-\frac{1}{b})$$

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Description : A hollow cylinder of length 'l'and radii a and b is filled with a material of resistivity 'ρ' and is connected to a battery of emf ‘E’ through an ammeter, the reading of ammeter will be (1) $$\frac{E2\pi l}{ρ\,log_e (b/a)}$$ (2) $$\frac{E2\pi l}{ρ\,log_e (a/b)}$$ (3) infinite (4) zero

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Description : A pure siliconn sample has ne = 1.3 x 1016 m-3. The material is doped with (a) 1019 atoms m-3 of phosporous (b) 2 x 1019 atoms m-3 of boron one by one. What is ratio of resistivity of doped sample in (a) and (b) due ... m2V-1s-1, Mobility of holes = 0.0426 m2V-1s-1 . (1) 1 (2) 2 (3) 1/2 (4) 2/3

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Description : A potentiometer wire AB is of length 100 cm, with C as its middle point. The part AC is made of a uniform wire of a material of resistivity ρ1 . The diameter of this part is d1 . The part CB is made of another uniform wire of a ... cm. The ratio E1 /E2 is equal to (1) 2/7 (2) 4/5 (3) 40/65 (4) 4/9

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Description : What is specific resistance or resistivity of the material?

Last Answer : Specific resistance of the material is the resistance of a piece of unit length and unit cross-section (unit cube of that material). That is the resistance between the opposite faces of unit cube of the material. ... face of that material. The unit of specific resistance is Ω/cm3 , Ω/inch3 , Ω/m3 .

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Description : Calculate the conduction current density when the resistivity of a material with an electric field of 5 units is 4.5 units. a) 22.5 b) 4.5/5 c) 5/4.5 d) 9.5

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Description : Calculate the conduction density of a material with resistivity of 0.02 units and electric intensity of 12 units. a) 300 b) 600 c) 50 d) 120

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Description : A material with zero resistivity is said to have a) Zero conductance b) Infinite conductance c) Zero resistance d) Infinite resistance

Last Answer : c) Zero resistance

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Description : Find the resistivity of a material having resistance 20kohm, area 2 units and length of 12m. a) 6666.6 b) 3333.3 c) 1200 d) 2000

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Description : Find the current density of a material with resistivity 20 units and electric field intensity 2000 units. a) 400 b) 300 c) 200 d) 100

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Description : The resistivity of a material with resistance 200 ohm, length 10m and area twice that of the length is a) 200 b) 300 c) 400 d) 500

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Description : Example of high resistivity material is (A) Nichrome (B) Silver (C) Gold (D) Copper

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Description : The material with lowest resistivity is (A) constantan. (B) silver. (C) manganin. (D) nichrome.

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Description : Which of the following statement is correct? (1) For metals, resistivity increases linearly with temperature, at all temperatures (2) For insulators resistivity decreases expontentially with decreasing ... (4) Resistivity increases with temperatures for metals, insulators as well as semi conductors.

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Description : Which of the following statements is incorrect? (1) The resistance of a thermistor charges very rapidly with charge in temperature. (2) The temperature co-efficient of resistivity can be both positive and ... -3C. (4) The temperature co-efficient of resistivily of a thermistor is normally very low.

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Description : Coke used for the production of calcium carbide should have (A) Low ash content (B) Low ignition temperature (C) High electrical resistivity (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

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Description : Gold and silver are (A) dielectric materials (B) low resistivity conducting materials. (C) magnetic materials. (D) insulating materials.

Last Answer : (B) low resistivity conducting materials.

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

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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 ... 5, 3, 1 and 2  (c) 2, 3, 1, 5 and 4  (d) 4, 5, 1, 3 and 2

Last 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