Question

Which of the following resistivity (\(\rho\)) vs temperature (T) curves is most suitable to be used in wire-bound standard resistors?

• A.
• B.
• C.
• D.

Hint:

In wire-bound standard resistors, resistivity is constant across temperature changes.

Answer 1

The Correct Option is A

For wire-bound standard resistors, stable resistivity across temperature variations is essential for accurate and consistent resistance. This means the ideal resistivity (\(\rho\)) versus temperature (T) curve should exhibit minimal resistivity change with temperature. A curve that is nearly constant, depicted as a horizontal line, signifies resistivity unaffected by temperature fluctuations.

Option illustrates a resistivity that remains essentially constant with temperature. This makes it the most appropriate choice for wire-bound standard resistors, indicating a resistivity largely independent of temperature, thereby ensuring reliable and precise resistance values.