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Electronic Configuration

A gas filled ...

Question

A gas filled in electric bulbs:

A

argon

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B

krypton

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C

xenon

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D

all of these

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Solution

The correct option is D all of these
Modern bulbs are usually filled with a mixture of argon and nitrogen. More rarely, some bulbs are filled with pure argon, krypton or xenon.

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Q. Assertion: Argon gas is filled in the electric bulb.

Reason: Argon does not react with the filament in an electric bulb even at high temperature.

Q. Assertion :Nitrogen gas is filled in electric bulbs. Reason: Nitrogen is colorless, odourless and tasteless gas.

Q. Which of the following gas is used to fill electric bulbs?

Q. Argon gas is used in electric bulbs.

Q. (a) State Joule's law of heating. Name two gases which are filled in electric bulbs and explain why these gases are filled in electric bulbs.
(b) An electric iron consumes energy at a rate of 840 W, when heating is at the maximum rate. The voltage of electric source is 220 V. Calculate the value of current and the resistance.

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