We repeat the experiment from the video, but this time we connect the wires in parallel...
We repeat the experiment from the video, but this time we connect the wires in parallel rather than in series. Which wire will now dissipate the most heat?
| Both wires will dissipate the same amount of heat. | |
| The Nichrome wire (resistance 2.7 ?) | |
| The copper wire (resistance 0.1 ?) |
Homework Answers
The power P dissipated in a wire equals V2/R, where V is the potential difference across the wire and R is the wire's resistance. In a parallel circuit, the potential difference (voltage) is the same across both wires. Therefore, the lower-resistance copper wire dissipates more power and hence is more likely to ignite its paper.
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From the experiment in Table 9, we see that in a parallel circuit, a) the current...
From the experiment in Table
9, we see that in a parallel circuit,
a) the current is divided among the components, the
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In each of the cases below, the demonstrator starts with her arms
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