OK my second attempt.. as for the labelling of the diagram top left is R1, Top right is RS, Bottom left is R2 & Bottom Right is RT.
Rt = R0(1 + at)
R0 = 100 (1 + 0.0052 x 20) = 110.4 ohms
R150 = 110.4(1 + 0.0052 x 150) = 196.5 ohms
Fundamental Interval = Rt - R0 = 196.5 - 110.4 = 86.1 ohms...
Homework Statement
A resistance thermometer bridge circuit shown below has a
designed maximum temperature of 150°C, ignoring the effects of
connecting wire resistance. If the connecting loop is 200 m
determine the smallest gauge (swg) of copper wire which must be
used if the indicated maximum...