An electric string of length l is elastically stretched through a length e by a...

WAEC 1992

An electric string of length l is elastically stretched through a length e by a force F. The area of cross- section of the string is A and its Young’s modulus is E. Which of the following expressions is correct?

A. F = EA/eI
B. F = EAI/e
C. F = EAe/l
D. F = EAe

WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now

WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now

Correct Answer: Option C

Explanation

E = Stress/Strain = F/A/e/L
E = FL/AE; F = EAe/L

Previous Next

Go back to Phy classroom

Report an Error Ask A Question Download App

Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts

Contributions ({{ comment_count }})

Please wait...

{{ settings.no_comment_msg ? settings.no_comment_msg : 'There are no comments' }}

Quick Questions

professor John is the leader of the ________ committee to review the new book? Answer this

1 Answers · English Language · 3 months ago
His contract was ---- because of irregularities in his contract You picked annulled over terminated and I want to know... Answer this

1 Answers · English Language · 2 months ago
whats is the difference between phrase and clause? Answer this

2 Answers · English Language · 3 days ago

An electric string of length l is elastically stretched through a length e by a...

Correct Answer: Option C

Explanation

Contributions ({{ comment_count }})

Please wait...

Modal title

Report

Block User

{{ feedback_modal_data.title }}

Quick Questions

Post your Contribution

Sign In