Question

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.

Options

• 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.

Answer 1

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.