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

How many wires are normally connected to a double- filament light bulb?
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5
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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

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Why a bulb with a filament gives off light?

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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.

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

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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

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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.

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

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

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

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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

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

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

Last Answer : The answer is 'Tungsten'

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

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

Last Answer : answer:

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:

Filament of electric bulb is made of which metal ?

Description : Filament of electric bulb is made of which metal ?

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

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.

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.

In order to prevent the hot metal filament from getting burnt, when the electric current is switched on, the bulb is filled with

Description : In order to prevent the hot metal filament from getting burnt, when the electric current is switched on, the bulb is filled with

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)`

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.

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.

The filament of an electric bulb is made of which metal

Description : The filament of an electric bulb is made of which metal

Last Answer : Tungsten

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

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

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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)

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

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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

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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.

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).

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

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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

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 an electric bulb is made of which metal?

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

Last Answer : Tungsten

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

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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

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Last Answer : dust inside the bulb condenses on the top

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

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

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Last Answer : It has a very high melting point

Circuit diagram at tungsten filament bulb

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The filament of an electric bulb is made of?

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Used normally, a 150-watt, 120 volt light bulb requires how many amps of current?

Description : Used normally, a 150-watt, 120 volt light bulb requires how many amps of current?

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The earth-wire of a cable is connected to – (1) the outer metallic body of the appliance (2) the fuse of the appliance (3) the filament of the appliance (4) short circuitry of the appliance

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Current in a 60 W light bulb when it is connected to a 230 V power supply is A. 0.26 A B. 1.5 A C. 2.6 A D. 3.9 A

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