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Talking about a wheatstone bridge here. Page 216 of the TBR Physics book.
When Metal I is used as Rk and Metal II is used in Ru, the slide-wire is closer to Point a than Point c. When Metal I is used as Rk and Metal III is used in Ru, the slide-wire is closer to Point c than Point a. What are the relative resistivities of Metal I, Metal II, and Metal III?
Tbr's explanation says that:
With Metal I constituting Rk and Metal II constituting Ru, Wire segment AZ is shorter than Wire segment ZC. This means that the resistance of Rk must be less than the resistance of Ru.
How are they drawing that conclusion?
Thanks!
When Metal I is used as Rk and Metal II is used in Ru, the slide-wire is closer to Point a than Point c. When Metal I is used as Rk and Metal III is used in Ru, the slide-wire is closer to Point c than Point a. What are the relative resistivities of Metal I, Metal II, and Metal III?
Tbr's explanation says that:
With Metal I constituting Rk and Metal II constituting Ru, Wire segment AZ is shorter than Wire segment ZC. This means that the resistance of Rk must be less than the resistance of Ru.
How are they drawing that conclusion?
Thanks!