Post Utme Redeemers University 2021 Physics Question 21

Practice objective / multiple choice question 21 from the 2021 Post Utme Redeemers University Physics examination.

Post Utme Redeemers University 2021 Physics Objective / Multiple Choice
Question 21 POST_UTME_REDEEMERS_UNIVERSITY • 2021 • PHYSICS • objective

A 2.5 m long wire is made of a material with a resistivity of 2.1 × 10^\( -8 \) Ωm. If the wire is stretched to a length of 5 m, what is the new resis\tance?

Answer Options

A. 1.05 × 10^\( -7 \) Ω
B. 2.1 × 10^\( -7 \) Ω
Correct Answer C. 4.2 × 10^\( -7 \) Ω
D. 5.25 × 10^\( -7 \) Ω
Correct Answer
C
Correct Option:
4.2 × 10^\( -7 \) Ω

About This Question

This is Post Utme Redeemers University 2021 Physics Question 21. It is one of the objective questions from the 2021 Post Utme Redeemers University Physics examination.

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