Assertion :A torch bulb give light if operated on AC of same voltage and current as DC. Reason: Heating effect is common to both AC and DC.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
The bulbs are filled with chemically inactive gases. Nitrogen and oxygen gases are inactive and are filled in order to prolong the life of filament The torch bulbs are operated on heating effect if same voltage DC or same AC rms voltage is applied produced same heating effect irrespective of the direction of current.

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