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katen-ka-za [31]
3 years ago
12

If v=10v, what value of R would limit l to 10 mA? (if you have 10 volts, what resistance would be needed to limit the current to

10 milliamps)
A.100 R
B.1000 ohms
C.10 ohms
D.1 R
Physics
1 answer:
777dan777 [17]3 years ago
7 0

r=v/i =10/0.01=1000ohms B

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For this case, let's assume that the pot spends exactly half of its time going up, and half going down, i.e. it is visible upward for 0.245 s and downward for 0.245 s. Let us take the bottom of the window to be zero on a vertical axis pointing upward. All calculations will be made in reference to this coordinate system. <span>

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