The third (current-carrying) rail of a subway track is made of steel and has a cross-sectional area

Question:

The third (current-carrying) rail of a subway track is made of steel and has a cross-sectional area of about 55 cm2. What is the resistance of 10 km of this track?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question
Question Posted: