Question

A string of holiday lights is connected to an outlet in a series circuit. When the lights are plugged in, the circuit is overloaded, causing a fuse to blow. Which of the following is most likely to solve the problem and allow the lights to remain lit?
A. Add more lights to the series circuit.
B. Replace several lights on the string with wires.
C. Increase the voltage of the battery.
D. Connect the lights in a parallel circuit.

Answer 1

Answer: A. - Add more lights to the series circuit

Explanation:

(^^ D. IS THE INCORRECT ANSWER!!! ^^)

In a series circuit, the total resistance is equal to the sum of the resistance of each component. Adding more lights will increase the total resistance of the circuit, reducing the flow of current to an acceptable, safe level. If some lights were replaced by wires, the resistance would decrease, and the current would increase. The current also depends on voltage, and increasing voltage would increase the current. If the lights were connected in a parallel circuit, the resistance would be a small fraction of its current value.

Answer 2

Answer:

D. Connect the lights in a parallel circuit.

Explanation: