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प्रश्न
Assertion (A): If hundreds or thousands of electric bulbs are to be joined for decorating a building, then they should be connected in series with the mainline.
Reason (R): In series circuit, if one electric bulb gets fused, then all other electric bulbs also stop glowing.
विकल्प
Both A and R are true and R is correct explanation of the assertion.
Both A and R are true but R is not the correct explanation of the assertion.
A is true but R is false.
A is false but R is true.
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उत्तर
A is false but R is true.
Explanation:
The assertion is false because decorative building lights should never be connected in a single series circuit; if hundreds of bulbs were in series, the total circuit voltage would divide across them, making them glow extremely dimly, or not at all. However, the reason is true because a key characteristic of a series circuit is that a single broken or fused bulb breaks the entire path, causing all other bulbs to immediately stop glowing.
