Blueprint MCAT Formerly Next Step
Return to Blog Homepage

MCAT Physics Question — Wire Resistance

Resistance in a wire depends on:

I. cross-sectional area
II. the material comprising the wire
III. the length of the wire

a) I only

b) I and II only

c) II and III only

d) I, II and III

Explanation

Resistance in a wire follows the equation R=ρL/A where ρ is a property of the wire material, L is the length of the wire, and A is the cross-sectional area of the wire.

a) I only, incorrect.

b) I and II, incorrect.

c) II and III, incorrect.

d) I, II and III, correct.

Want more MCAT practice?

We’ve got options for every schedule and learning style!

From the best online MCAT course created by top instructors with 524+ MCAT scores to the most representative full-length practice exams and private tutoring, we can custom tailor your MCAT prep to your goals!

Not sure which option is right for you? Schedule a free MCAT consultation with an MCAT expert using the form below. No obligation, just expert advice.

Submit a Comment

Submit a Comment

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.