Question 39Electricity & Electronics - QMED
70% to passFour lamps are connected in parallel in a single circuit. If one of the lamps burns out, what will happen to the other lamps?
The correct answer is C) the other lamps will burn with their original intensities. In a parallel circuit, each component (in this case, the lamps) is connected independently to the power source. If one lamp burns out, it creates an open circuit for that particular branch, but the other branches remain unaffected. This means the remaining lamps will continue to operate at their original brightness levels, as the total resistance of the circuit and the current flowing through the other branches do not change. The other options are incorrect because: A) the lamps will not become brighter, as the total resistance of the circuit has not changed; B) the other lamps will not go out, as they are not dependent on the failed lamp; and D) the lamps will not become dimmer, as the total resistance and current have not changed.
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