What property of metals makes them good conductors?

What property of metals makes them good conductors?
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Which property of metals make them good conductors of electricity?

Description : Which property of metals make them good conductors of electricity?

Last Answer : Their mobile electrons

Metals are good conductors of electricity because (a) The contain free electrons (b) The atoms are lightly packed (c) They have high melting point (d) All of the above

Description : Metals are good conductors of electricity because (a) The contain free electrons (b) The atoms are lightly packed (c) They have high melting point (d) All of the above

Last Answer : Ans:(b)

On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because – (1) metals have higher thermal capacity than plastics (2) plastics have a lower density than metals (3) metals are good conductors of heat (4) plastics have a higher thermal conductivity than metals

Description : On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because - (1) metals ... metals (3) metals are good conductors of heat (4) plastics have a higher thermal conductivity than metals

Last Answer : (3) metals are good conductors of heat Explanation: On a chilly day, the room temperature is lower than our body temperature. Since metals have a higher coefficient of thermal conductivity than plastic, they ... from our fingers will flow to the metal cap much more quickly than to the plastic body.

Metals are good conductors of electricity because - (1) they contain free electrons (2) the atoms are lightly packed (3) they have high melting point (4) All of the above

Description : Metals are good conductors of electricity because - (1) they contain free electrons (2) the atoms are lightly packed (3) they have high melting point (4) All of the above

Last Answer : (1) they contain free electrons Explanation: Copper is used for electrical wiring because it is a good conductor of electricity. Metal particles are held together by strong metallic bonds, which is why they have high melting and boiling points.

Metals are good conductors of electricity because – (1) they contain free electrons (2) the atoms are lightly packed (3) they have high melting point (4) All of the above

Description : Metals are good conductors of electricity because – (1) they contain free electrons (2) the atoms are lightly packed (3) they have high melting point (4) All of the above

Last Answer : (1) they contain free electrons Explanation: Copper is used for electrical wiring because it is a good conductor of electricity. Metal particles are held together by strong metallic bonds, which is why they have high melting and boiling points.

Which of the following are bad conductors of electricity? (1) Mica and Quartz (2) Metals and Rubber (3) Metals and Mica (4) Mica and Rubber

Description : Which of the following are bad conductors of electricity? (1) Mica and Quartz (2) Metals and Rubber (3) Metals and Mica (4) Mica and Rubber

Last Answer : (1) Mica and Quartz Explanation: Metals are good conductors of electricity, because they have free electrons. Micaand quartz are examples of insulators (bad conductors of electricity), they don't have free electrons.

(a) If the radius of the Br ion is 0.182 nm, how large a cation can fit in each of the tetrahedral hole. (b) AgI crystallizes in a cubic closed packed ZnS structure. What fraction of tetrahedral site is occupied by Ag ion ? (c) At what temp. range, most of the metals becomes super conductors ?

Description : (a) If the radius of the Br ion is 0.182 nm, how large a cation can fit in each of the tetrahedral hole. (b) AgI crystallizes in a cubic closed packed ZnS structure. What fraction of tetrahedral site ... Ag ion ?  (c) At what temp. range, most of the metals becomes super conductors ?

Last Answer : (a) For a tetrahedron the limiting ratio is 0.225 – 0.414 For largest cation highest value 0.414 would be considered. r + / r– = 0.414 r + = 0.414 × 0.182 = 0.075 nm. (b) In FCC there are 8 tetrahedral voids. Out of this ½ is occupied by Ag cation. (c) 2 k – 5 k.

Generally Non-metals are not conductors of electricity. Which of the given is a good conductor of electricity? a) Diamond b) Graphite c) Sulphur d) Fullerene

Description : Generally Non-metals are not conductors of electricity. Which of the given is a good conductor of electricity? a) Diamond b) Graphite c) Sulphur d) Fullerene

Last Answer : b) Graphite

Metals are good conductors of electricity because they have: (a) Large number of bounded electrons (b) Small number of electrons (c) Large number of free electrons (d) Small number of free electrons

Description : Metals are good conductors of electricity because they have: (a) Large number of bounded electrons (b) Small number of electrons (c) Large number of free electrons (d) Small number of free electrons

Last Answer : (c) Large number of free electrons

Which of the following statement is correct: (a) Similar charges attract each other (b) Similar charges attract and repel each other (c) Similar charges repel each other (d) Similar charges neither attract nor repel 9. Metals are good conductors of electricity because they have:

Description : Which of the following statement is correct: (a) Similar charges attract each other (b) Similar charges attract and repel each other (c) Similar charges repel each other (d) Similar charges neither attract nor repel 9. Metals are good conductors of electricity because they have:

Last Answer : (c) Similar charges repel each other

On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because : (1) metals have higher thermal capacity than plastics (2) plastics have a lower density than metals (3) metals are good conductors of heat (4) plastics have a higher thermal conductivity than metals

Description : On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because : (1) metals ... metals (3) metals are good conductors of heat (4) plastics have a higher thermal conductivity than metals

Last Answer : metals are good conductors of heat

One of the following metals froms a volatile corbony1 compound and this property is taken advantage of its extraction. This metal is

Description : One of the following metals froms a volatile corbony1 compound and this property is taken advantage of its extraction. This metal is

Last Answer : One of the following metals froms a volatile corbony1 compound and this property is taken advantage of its ... . Nickel B. Iron C. Cobalt D. Vanadium

The property by virtue of which metals can be beaten into thin sheets is known as: A. Density B. Malleability C. Conductivity D. Ductility

Description : The property by virtue of which metals can be beaten into thin sheets is known as: A. Density B. Malleability C. Conductivity D. Ductility

Last Answer : ANSWER: B

Consider the following statements: 1. Mercury metal exists as a liquid at room temperature. 2. The property of metals by which they can be beaten into thin sheets is called malleability 3. Neutral fats such as butter and vegetable oils are mostly triglycerides. 4. The size of an atom is of the order of 10 - 15 m. The correct statements are: (a) 1, 2 and 4 only (b) 1, 3 and 4 only (c) 2, 3 and 4 only (d) 1, 2 and 3 only

Description : Consider the following statements: 1. Mercury metal exists as a liquid at room temperature. 2. The property of metals by which they can be beaten into thin sheets is called malleability 3. Neutral fats such as butter and vegetable oils ... b) 1, 3 and 4 only (c) 2, 3 and 4 only (d) 1, 2 and 3 only

Last Answer : Ans:(d)

Soldering of two metals is possible because of the property of – (1) Viscosity (2) Osmosis (3) Cohesion (4) Surface tension

Description : Soldering of two metals is possible because of the property of – (1) Viscosity (2) Osmosis (3) Cohesion (4) Surface tension

Last Answer : (3) Cohesion Explanation: Soldering is the process of joining two metals by the use of a solder alloy, and it is one of the oldest known joining techniques. It is possible because of the ... through-out the interior of substance. Soldering leads to alloy formation at the layer between two metals.

Soldering of two metals is possible due to the property–

Description : Soldering of two metals is possible due to the property–

Last Answer : Cohesion

The property by virtue of which metals can be beaten into thin sheets is known as? A. Ductility B. Malleability (Answer)

Description : The property by virtue of which metals can be beaten into thin sheets is known as? A. Ductility B. Malleability (Answer)

Last Answer : B. Malleability (Answer)

The property of metals being beaten into thin sheets is called A) Ductility B) Malleability C)Brittle D)None of these

Description : The property of metals being beaten into thin sheets is called A) Ductility B) Malleability C)Brittle D)None of these

Last Answer : B) Malleability

A bimetallic strip commonly found in home furnace thermostats works because of the difference in this property of the two metals. Is it: w) thermal shock x) thermal conductivity y) thermal expansion z) thermal diffusivity

Description : A bimetallic strip commonly found in home furnace thermostats works because of the difference in this property of the two metals. Is it: w) thermal shock x) thermal conductivity y) thermal expansion z) thermal diffusivity

Last Answer : ANSWER: Y -- THERMAL EXPANSION

Soldering of two metals is possible because of the property of : (1) Viscosity (2) Osmosis (3) Cohesion (4) Surface tension

Description : Soldering of two metals is possible because of the property of : (1) Viscosity (2) Osmosis (3) Cohesion (4) Surface tension

Last Answer : Cohesion

To minimize magnetic field interaction between electrical conductors in physical proximity, it is best to keep them ___________________. A. parallel and as close as possible to each other B. at right angles and as close as possible to each other C. parallel to and as far as practicable from each other D. at right angles and as far as practicable from each other

Description : To minimize magnetic field interaction between electrical conductors in physical proximity, it is best to keep them ___________________. A. parallel and as close as possible to each other B. at right angles ... practicable from each other D. at right angles and as far as practicable from each other

Last Answer : Answer: D

In a DC series circuit, all the conductors have the same ____________. A. power expended in them B. voltage drop across them C. resistance to current flow D. current passing through them

Description : In a DC series circuit, all the conductors have the same ____________. A. power expended in them B. voltage drop across them C. resistance to current flow D. current passing through them

Last Answer : Answer: D

Current carried by each of the two long parallel conductors is doubled. If their separation is also doubled , force between them is

Description : Current carried by each of the two long parallel conductors is doubled. If their separation is also doubled , force between them is

Last Answer : Increase two fold

Metal are good conductors, because (1) they contain free electrons (2) the molecules in them are very close to each other (3) the molecules in them collide very freely (4) they contain reflecting surface

Description : Metal are good conductors, because (1) they contain free electrons (2) the molecules in them are very close to each other (3) the molecules in them collide very freely (4) they contain reflecting surface

Last Answer : they contain free electrons

What property of liquid crystals makes them useful for displays?

Description : What property of liquid crystals makes them useful for displays?

Last Answer : Liquid crystals can rotate the angle of polarization of light bydifferent amounts depending on the strength of an electric fieldacross them. This allows them to be used in high speed opticalswitches controlling the amount of light visible in pixels of adisplay.

Which property of copper and aluminium makes them suitable?

Description : Which property of copper and aluminium makes them suitable?

Last Answer : a) For making cooking utensils and boilers. Good conductor of heat. b) For making electric wires. Good conductor of electricity.