The filament of an electric bulb is made of which metal? -General Knowledge

Last Answer : In order to prevent the hot metal filament from getting burnt, when the electric current is switched on, the bulb is ... gas C. `CO_(2)` D. `Cl_(2)`

Why is the filament of electric bulb made of tungsten ?

Description : Why is the filament of electric bulb made of tungsten ?

Last Answer : When electricity flows through the coil or filament of the thin wire of the bulb, it becomes very hot and radiates all around. Tungsten is a metal with the highest melting point and the highest tensile strength, making it a filament to make the bulb more durable.

An electric bulb has a filament made of (a) Copper (b) Iron (c) Lead (d) Tungsten

Description : An electric bulb has a filament made of (a) Copper (b) Iron (c) Lead (d) Tungsten

Last Answer : Ans:(d)

The filament of electric bulb is made of (1) Iron (2) Nichrome (3) Tungsten (4) Graphite

Description : The filament of electric bulb is made of (1) Iron (2) Nichrome (3) Tungsten (4) Graphite

Last Answer : (3) Tungsten Explanation: The filament is the part of the light bulb that produces light. Filaments in incandescent light bulbs are made of tungsten.

The filament of electric bulb is made up of : (1) Copper (2) Nichrome (3) Lead (4) Tungsten

Description : The filament of electric bulb is made up of : (1) Copper (2) Nichrome (3) Lead (4) Tungsten

Last Answer : (4) Tungsten Explanation: An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light which produces light with a filament wire heated to a high temperature by an electric ... through it, until it glows. Tungsten, also known as wolfram, is a chemical element.

The filament of electric bulb is made up o

Description : The filament of electric bulb is made up o

Last Answer : Tungsten

The filament of electric bulb is made up of : (1) Copper (2) Nichrome (3) Lead (4) Tungsten

Description : The filament of electric bulb is made up of : (1) Copper (2) Nichrome (3) Lead (4) Tungsten

Last Answer : Tungsten

The filament of an electric bulb is made of?

Description : The filament of an electric bulb is made of?

Last Answer : The filament of an electric bulb is made of tungsten.

Consider the following statements: 1. when an electric bulb is switched on, the resistance of its tungsten filament increases. 2. the resistance of pure metals increases on heating. Which of the above statements is/are correct? (a) Both 1 and 2 (b) only 1 (c) only 2 (d) Neither 1 nor 2

Description : Consider the following statements: 1. when an electric bulb is switched on, the resistance of its tungsten filament increases. 2. the resistance of pure metals increases on heating. Which of the above statements is/are correct? (a) Both 1 and 2 (b) only 1 (c) only 2 (d) Neither 1 nor 2

Last Answer : Ans:(a)

Air is completely removed from an electric bulb to prevent (a) oxidation of tungsten filament (b) bursting of the bulb (c) loss of light due to absorption (d) none of these

Description : Air is completely removed from an electric bulb to prevent (a) oxidation of tungsten filament (b) bursting of the bulb (c) loss of light due to absorption (d) none of these

Last Answer : Ans:(a)

By what process is heat transmitted from the filament of an evacuated electric bulb to the glass? (a) Conduction (b) Convection (c) Radiation (d) Heat cannot be transmitted through vacuum

Description : By what process is heat transmitted from the filament of an evacuated electric bulb to the glass? (a) Conduction (b) Convection (c) Radiation (d) Heat cannot be transmitted through vacuum

Last Answer : Ans:(c)

In a filament type light bulb most of the electric power consumed appears as – (1) visible light (2) infra-red rays (3) ultra-violet rays (4) fluorescent light

Description : In a filament type light bulb most of the electric power consumed appears as – (1) visible light (2) infra-red rays (3) ultra-violet rays (4) fluorescent light

Last Answer : (2) infra-red rays Explanation: When electricity is passed through the filament, the filament gets hot. Depending on the temperature of the filament, radiation is emitted from the filament. The ... energy converts into visible light and rest of it is emitted as heat or infrared radiation.

Tungsten is used for the manufacture of the filament of an electric bulb, because – (1) It is a good conductor (2) It is economical (3) It is malleable (4) It has a very high melting point

Description : Tungsten is used for the manufacture of the filament of an electric bulb, because – (1) It is a good conductor (2) It is economical (3) It is malleable (4) It has a very high melting point

Last Answer : (4) It has a very high melting point Explanation: Tungsten is used because it has the highest melting point of all the metallic elements. It melts at 3410 degrees Celsius. When current passes ... bulb. The first successful light bulb filaments were made of carbon (from carbonized paper or bamboo).

In a Filament type Light bulb most of the electric power consumed appear as

Description : In a Filament type Light bulb most of the electric power consumed appear as

Last Answer : Infrared rays

For the filament of electric bulb tungsten is used because

Description : For the filament of electric bulb tungsten is used because

Last Answer : Its Melting point is very high

In a filament type light bulb most of the electric power consumed appears as (1) visible light (2) infra-red rays (3) ultra-violet rays (4) fluorescent light

Description : In a filament type light bulb most of the electric power consumed appears as (1) visible light (2) infra-red rays (3) ultra-violet rays (4) fluorescent light

Last Answer : infra-red rays

Tungsten is used for the manufacture of the filament of an electric bulb, because (1) It is a good conductor (2) It is economical (3) It is malleable (4) It has a very high melting point

Description : Tungsten is used for the manufacture of the filament of an electric bulb, because (1) It is a good conductor (2) It is economical (3) It is malleable (4) It has a very high melting point

Last Answer : It has a very high melting point

The filament of a bulb is made up of -General Knowledge

Description : The filament of a bulb is made up of -General Knowledge

Last Answer : answer:

Will the filament resistance of a bulb be higher at normal temperature or in incandescent condition ?

Description : Will the filament resistance of a bulb be higher at normal temperature or in incandescent condition ?

Last Answer : As the resistance increases with increasing temperature, the resistance of the filament of the bulb will be higher than the normal temperature.

A filament bulb `(500 W, 100 V)` is to be used in a `230 V` main supply. When a resistance `R` is connected in series, it works perfectly and the bulb

Description : A filament bulb `(500 W, 100 V)` is to be used in a `230 V` main supply. When a resistance `R` is connected in series, it works perfectly and the bulb

Last Answer : A filament bulb `(500 W, 100 V)` is to be used in a `230 V` main supply. When a resistance `R` is ... Omega` B. `46 Omega` C. `26Omega` D. `13 Omega`

What is the status of a bulb with a broken filament?

Description : What is the status of a bulb with a broken filament?

Last Answer : With a broken filament, the bulb is dead. It needs to be replaced with a new bulb.

How many wires are normally connected to a double- filament light bulb?

Description : How many wires are normally connected to a double- filament light bulb?

Last Answer : 5

If the filament of the bulb is broken would the circuit be complete?

Description : If the filament of the bulb is broken would the circuit be complete?

Last Answer : If the bulb's filament is broken, the whole circuit becomes open. If the bulb is in a series circuit or is the only bulb, the electricity would no longer flow. If the bulb is in a parallel circuit, along with other bulbs, then only the blown bulb would go out, and the other bulbs would still work.

Why a bulb with a filament gives off light?

Description : Why a bulb with a filament gives off light?

Last Answer : Electricity goes through the filament in the bulb.The filament is made of a material that is not a good conductor and therefore offers "resistance" to the electricity going through it.The "resistance" results ... hot, then very hot.The filament gets so hot that it starts to glow, giving off light.

After long periods of use, a gray spot develops on the inside of a bulb. This is because of: A. The tungsten filament evaporates and collects there B. The heat of the bulb scorches the glass at the top C. Dust inside the bulb condenses on the top D. Glass undergoes a change due to the heat

Description : After long periods of use, a gray spot develops on the inside of a bulb. This is because of: A. The tungsten filament evaporates and collects there B. The heat of the bulb scorches the glass at the top C. Dust inside the bulb condenses on the top D. Glass undergoes a change due to the heat

Last Answer : ANSWER: A

After long periods of use, a grey spot develops on the inside of a bulb. This is because – (1) the tungsten filament evaporates and collects there (2) the heat of the bulb scorches the glass at the top (3) dust inside the bulb condenses on the top (4) glass undergoes a change due to the heat

Description : After long periods of use, a grey spot develops on the inside of a bulb. This is because – (1) the tungsten filament evaporates and collects there (2) the heat of the bulb scorches the glass at the top (3) dust inside the bulb condenses on the top (4) glass undergoes a change due to the heat

Last Answer : (3) dust inside the bulb condenses on the top Explanation: At high operating temperatures, tungsten evaporates from the filament and gradually forms a gray film on the inside of the bulb. The inert ... spot develops in the filament. When this happens, the filament will break and the bulb fails.

There are three bulbs of 60W 100W and 200W which bulb has thickest filament. a. 100W b. 200W c. 60W d. All

Description : There are three bulbs of 60W 100W and 200W which bulb has thickest filament. a. 100W b. 200W c. 60W d. All

Last Answer : b. 200W

Is the filament resistance lower or higher in a 500 watt light bulb than in a 100 watt light? Assume that both bulbs have been designed to operate at 110 volts.

Description : Is the filament resistance lower or higher in a 500 watt light bulb than in a 100 watt light? Assume that both bulbs have been designed to operate at 110 volts.

Last Answer : ANSWER: LOWER

After long periods of use, a grey spot develops on the inside of a bulb. This is because (1) the tungsten filament evaporates and collects there (2) the heat of the bulb scorches the glass at the top (3) dust inside the bulb condenses on the top (4) glass undergoes a change due to the heat

Description : After long periods of use, a grey spot develops on the inside of a bulb. This is because (1) the tungsten filament evaporates and collects there (2) the heat of the bulb scorches the glass at the top (3) dust inside the bulb condenses on the top (4) glass undergoes a change due to the heat

Last Answer : dust inside the bulb condenses on the top

Circuit diagram at tungsten filament bulb

Description : Circuit diagram at tungsten filament bulb

Last Answer : Circuit diagram at tungsten filament bulb

The filament of an electric lamp becomes white hot but the lead-in wires holding the filament are only slightly heated because they (a) have smaller current passing through them (b) have very low resistance (c) have higher melting point (d) are made of black iron

Description : The filament of an electric lamp becomes white hot but the lead-in wires holding the filament are only slightly heated because they (a) have smaller current passing through them (b) have very low resistance (c) have higher melting point (d) are made of black iron

Last Answer : Ans:(b)

1. Which is the gas usually filled in the electric bulb? 2. What is an intrusion of magma along a bedding plane is called? 3. Of which metal was the The famous figure of a dancing girl found in the excavations of Harappa ? 4. Which is nearest to Indira Gandhi Centre for Atomic Research? 5. Which part of separated UTI is under SEBI’s regulation?

Description : 1. Which is the gas usually filled in the electric bulb? 2. What is an intrusion of magma along a bedding plane is called? 3. Of which metal was the The famous figure of a dancing girl ... alloys is used for making magnets? 20. By which bank are the central banking functions in India performed?

Last Answer : Answer : 1. Nitrogen 2. Batholith 3. Bronze 4. Mahabalipuram 5. UTI-II 6. Xylem vessel system 7. China 8. Introduction of Dyarchy 9. Home Affairs 10. Charles H. Townes 11. Russia 12. Oxygen ... . Euclyptus 16. The Estimates Committee 17. Yangtze delta 18. Udayin 19. Alnico 20. Reserve Bank of India

Which metal is used in bulp filament ?

Description : Which metal is used in bulp filament ?

Last Answer : Tungsten is used in the filament of bulp.

What two properties of the metal tungsten that make it good material for the filament?

Description : What two properties of the metal tungsten that make it good material for the filament?

Last Answer : Magnesium and Titanium.

Calculate the number of free electrons passing through the filament of an electric lamp in one hour when the current through the filament is 0.32 A.

Description : Calculate the number of free electrons passing through the filament of an electric lamp in one hour when the current through the filament is 0.32 A.

Last Answer : Calculate the number of free electrons passing through the filament of an electric lamp in one hour when the current through the filament is 0.32 A.

The element used in an electric filament is (a) Copper (b) Aluminium (c) Iron (d) Tungsten

Description : The element used in an electric filament is (a) Copper (b) Aluminium (c) Iron (d) Tungsten

Last Answer : Ans:(d)

Full form of CFL used in place of electric bulbs is – (1) compact fluorescent lamp (2) constantan filament lamp (3) closed filament lamp (4) closed fluorescent lamp

Description : Full form of CFL used in place of electric bulbs is – (1) compact fluorescent lamp (2) constantan filament lamp (3) closed filament lamp (4) closed fluorescent lamp

Last Answer : (1) compact fluorescent lamp Explanation: A compact fluorescent lamp (CFL) is a fluorescent lamp designed to replace an incandescent lamp; some types fit into light fixtures formerly used for incandescent lamps.

The material used in the filament of electric bulbs is (A) Nichrome (B) Tungsten (C) Constantan (D) German silver

Description : The material used in the filament of electric bulbs is (A) Nichrome (B) Tungsten (C) Constantan (D) German silver

Last Answer : (B) Tungsten

Full form of CFL used in place of electric bulbs is (1) compact fluorescent lamp (2) constantan filament lamp (3) closed filament lamp (4) closed fluorescent lamp

Description : Full form of CFL used in place of electric bulbs is (1) compact fluorescent lamp (2) constantan filament lamp (3) closed filament lamp (4) closed fluorescent lamp

Last Answer : compact fluorescent lamp

An electric bulb of 100 W is used for 8 h per day. Calculate the 'units' of energy consumed in one day by the bulb? -Physics 9th

Description : An electric bulb of 100 W is used for 8 h per day. Calculate the 'units' of energy consumed in one day by the bulb? -Physics 9th

Last Answer : Given : t=6 hrs P=0.06 kW Thus energy consumed per day is: E=Pt=0.06×6=0.36 kWh=0.36 units

What is the unit of luminous efficiency of an electric bulb? -Do You Know?

Description : What is the unit of luminous efficiency of an electric bulb? -Do You Know?

Last Answer : answer:

Who invented the electric bulb ?

Description : Who invented the electric bulb ?

Last Answer : The electric bulb was invented by Thomas Alva Edison.

Matrix Matching. `{:("List-I","List-II"),((A) "Gas Thermometers",(p) He),((B) "Beacon lamp", (q) Ne),((C ) "Electric bulbs",(r ) Xe),((D) "Flash bulb"

Description : Matrix Matching. `{:("List-I","List-II"),((A) "Gas Thermometers",(p) He),((B) "Beacon lamp", (q) Ne),((C ) "Electric bulbs",(r ) Xe),((D) "Flash bulb"

Last Answer : Matrix Matching. `{:("List-I","List-II"),((A) "Gas Thermometers",(p) He),((B) "Beacon lamp", (q) Ne),((C ... ",(r ) Xe),((D) "Flash bulb", (s) Kr):}`

An electric bulb is hanging above the centre of a circular table of radiys 3m at a height of 3m from the its centre. Find the ratio of illuminance at

Description : An electric bulb is hanging above the centre of a circular table of radiys 3m at a height of 3m from the its centre. Find the ratio of illuminance at

Last Answer : An electric bulb is hanging above the centre of a circular table of radiys 3m at a height of 3m from the ... and at a point on the edge of the table.

An electric bulb illuminates a plane surface. The intensity of illumination on the surface at a point 2m away from the bulb is `5 xx 10^(-4)` phot. Th

Description : An electric bulb illuminates a plane surface. The intensity of illumination on the surface at a point 2m away from the bulb is `5 xx 10^(-4)` phot. Th

Last Answer : An electric bulb illuminates a plane surface. The intensity of illumination on the surface at a point 2m away from the ... ? (1 phot `= 1m//cm^(2))`.

How do know when electric current is flowing in a light bulb circuit?

Description : How do know when electric current is flowing in a light bulb circuit?

Last Answer : The bulb glows indicating that there is current flow. If thereis any ammeter in the circuit, it reads when there is current flowin the circuit

The filament of an electric bulb is made of which metal? -General Knowledge

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