Question

why we use Constantan wire for slide wire bridge? ​

Answer 1

Constantan wire is very strong and durable it is junk free because they were galvanized the matel that use in bridge should be strong or durable otherwise whole bridge can damage and destroyed people will also die so engineers use strong and best matel like constantan

Answer 2

Answer:

we use Constantan wire for slide wire bridge because it is made up of manganin and eureka. which give high specific resistance and resistivity .