Question 453Electricity & Electronics - Assistant Engineer

The correct answer is A) all the lamps go out. When lamps are connected in series, they share the same current. If one lamp burns out, it creates an open circuit, causing the current to stop flowing through the entire series. As a result, all the other lamps in the series will also go out because they no longer have power supplied to them. The other options are incorrect because in a series circuit, if one lamp fails, the current is interrupted, and the remaining lamps cannot continue to operate at their original or a brighter intensity.