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Question 22 2 pts Four different devices can be used in the Pivot Lab#5 A. Fan motor, B. spool of wire, C. 120-ohm resistor a

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B and D, I am choosing this answer due to the fact that fisrtly ,B is a metallic wire which means it is an ohmic material so therefore from ohms law which brings the reunion of voltage and current together.
And I choose D because also high resistance from the wire is also needed in the increasement of high p.d to actually meet up with the low pressure given to the gas though we know that the high p.d(volt) is actually derived from the current derived from a source.
So I go for B and D...

hit like ..let me know if you have any question..

thanks..

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