Asked by ruth
a student connects the ends of a pencil lead to a 6.0V supply and measures the current to be 8.6A.the lead is rod of graphite of length 7.5 cm and diameter 1.4mm.
a)calculate the resistance of the pencil
b)use this data to calculate the resistivity of graphite
a)calculate the resistance of the pencil
b)use this data to calculate the resistivity of graphite
Answers
Answered by
Steve
R = E/I = 6/8.6 = 0.70 ohms
Now use the definition of resistivity to work it out.
Now use the definition of resistivity to work it out.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.