Chemistry, 06.12.2020 04:20 terryhgivens5349
34. Many bicycles have generators that have a light that can be powered without a battery.
Instead of a battery, a magnet and a coil of wire are used to make an electric current flow. The
setup shown below models how a bicycle generator functions to produce light. Currently, no
electric current is flowing through the circuit shown.
What needs to happen to cause an electric current to flow through the circuit?
A. The magnet needs to be in constant motion.
B. A bigger light bulb needs to be used.
C. The magnet's north pole needs to point up.
D. A smaller wire needs to be used.
Answers: 2
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Phosphoric acid is a triprotic acid ( =6.9×10−3 , =6.2×10−8 , and =4.8×10−13 ). to find the ph of a buffer composed of h2po−4(aq) and hpo2−4(aq) , which p value should be used in the henderson–hasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.
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34. Many bicycles have generators that have a light that can be powered without a battery.
Instead...
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