Physics, 23.10.2019 16:50 bluepanda21
)a 1.50 {\rm m} cylindrical rod of diameter 0.550 {\rm cm} is connected to a power supply that maintains a constant potential difference of 15.0 {\rm v} across its ends, while an ammeter measures the current through it. you observe that at room temperature (20.0 ^\circ {\rm c}) the ammeter reads 18.8 {\rm a}, while at 92.0 ^\circ {\rm c} it reads 17.4 {\rm a}. you can ignore any thermal expansion of the rod.
1.find the resistivity and for the material of the rod at 20 ^\circ {\rm c}. (rho= ? ω*m)
2.find the temperature coefficient of resistivity at 20 ^\circ {\rm c} for the material of the rod.(α= ? (c)^-1)
Answers: 3
Physics, 22.06.2019 05:00
Which is the best predictor of the radioactive nature of an isotope? o the proton-to-electron ratio the neutron-to-proton ratio o the neutron-to-electron ratio the electron-to-proton ratio
Answers: 1
Physics, 22.06.2019 14:30
Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o
Answers: 1
)a 1.50 {\rm m} cylindrical rod of diameter 0.550 {\rm cm} is connected to a power supply that maint...
Mathematics, 26.08.2020 21:01
Mathematics, 26.08.2020 21:01
English, 26.08.2020 21:01
Mathematics, 26.08.2020 21:01
English, 26.08.2020 21:01
Mathematics, 26.08.2020 21:01
Mathematics, 26.08.2020 21:01
Mathematics, 26.08.2020 21:01