Assertion :Electric appliances with metallic body. e.g., heaters, presses etc., have three pin connections, whereas an electric bulb has a two pin connection. Reason: Three pin connections reduce heating of connecting cables.

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 C Assertion is correct but Reason is incorrect.
Assertion is correct. The three wires are - Power, Neutral and Earth. Earth wire provides protection from accidental charge leakages from appliances and prevents hazards. A bulb on the other hand is a low current device and needs only two wires - positive and negative. It does not need an earth. Three pin connections do not reduce heating of cables. It is not the purpose of providing 3 pin connections.
Therefore, assertion is correct but reason is incorrect.

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