Attached is a pic of the questions, 5 and 6. In the circuit shown, the switch is

Question

Attached is a pic of the questions, 5 and 6.

In the circuit shown, the switch is initially open. When the switch is closed does the voltage drop across bulb A increase, decrease or stay the same. Explain your answer. The bulbs in the circuit shown are identical. The switch S is initially closed Rank the bulbs in order of brightness from dimmest to brightest. Indicate which bulbs are the same brightness with an equals sign. Give a specific reason for your choice of brightest bulb The switch S is opened. Does the brightness of bulb A increase, decrease or stay the same? Explain your answer. Does the voltage drop across bulb A increase, decrease or stay the same? Explain your answer. Does the brightness of bulb D increase, decrease orstay the same? Explain your answer.

Explanation / Answer

5.
Increases, beacuse while it is open the current will flow through all bulbs, however, when it is closed, the second half of the circuit will be short circuit to the current will only flow through bulb A.

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