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course Phy 232
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Do submit your answers to the following questions, just submitting a copy of these questions and your answers:
In the series circuit, since there was no place in the circuit to store charge, the current through both bulbs was the same. What new insights do you get from your observations, in light of this fact?
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In the series circuit, the current had to pass through one bulb in order to get to the next bulb. Through this experiment, I learned that the current is associated with an increased force and that the voltage is associated with an increased rate of cranking. At times in this series circuit, more current had to be produced by the generator in order for the current to pass through the first bulb, and light up the second bulb equally as bright. The reasoning behind this is that because the current was constant, or the same, between the two bulbs, an increased cranking rate was needed to change the brightness of the bulbs. This increased cranking rate indicates an increase in voltage.
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In the parallel circuit both bulbs had a direct path to the source through wires, which have minimal resistance. So the voltage across both bulbs would have been the same. What new insights do you get from your observations, in light of this fact?
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In the parallel circuit, the current produced by the generator had direct paths to each bulb. With the same knowledge learned as listed in the previous question, I could tell the difference for the parallel circuit. For the parallel circuit, the voltage between the two bulbs remained the same. To control the brightness of the two bulbs, the current then had to be increasing or decreasing depending on what result from the bulbs you were looking for. Since the voltage remained the same, the current had to increase. An increase in current, from what I learned, results from an increase in force.
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It would be more appropriate to say that the increased current requires more force on the generator handle.
Increasing the force on the generator handle won't increase the current, except by increasing the voltage (which is to remain constant).
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