(2 tries) A friend is playing with a circuit that has two bulbs attached to a vo
ID: 1869262 • Letter: #
Question
(2 tries) A friend is playing with a circuit that has two bulbs attached to a voltage supply, the two bulbs are in series and one bulb is brighter than the other. Your friend says that the reason that one of the bulbs is brighter is because the electrons are converted into light. Which of the following experiments would be a good test of your friends idea? (Choose all that apply) Place a voltmeter in parallel with each bulb and record the voltage. Place a voltmeter in series with each bulb and record the voltage. Place an ammeter in parallel with each bulb and record the voltage. Place an ammeter in series with each bulb and record the voltage. Swap the position of the two light bulbs. It is not possible to test this idea with the equipment you used in the lab. A. B. C. D. E. F.Explanation / Answer
Because your friend tells that one of the bulbs are brighter because electrons are getting converted to light and that he/she would agree that the electrons are responsible for the flow of current in any circuit, it would be enough to show her that the current flowing through both the bulbs is same here [since the bulbs are connected in series]. This can be tested by connecting an Ammeter in series with each bulb. This fact would imply that the electrons are equally getting converted from either of the bulbs thereby contradicting the assertion that one of them is brighter.
Therefore, the answer is option D.
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