Physics
JAMB 1992
A wire of length 15m made of a material of resistivity 1.8 x 10
-6\(\Omega\)m has a resistance of 0.27\(\Omega\). Determine the area of the wire
-
A.
1.5 x 10-4m2
-
B.
1.0 x 10-4m2
-
C.
2.7 x 10-5m2
-
D.
7.3 x 10-6m2
Correct Answer: Option B
Explanation
Resistivity = \(\frac{\text {Resiatance x Area}}{length}\)
1.6 x 10-6 = \(\frac{15 \times Area}{0.27}\)
Area = 1.0 x 10-4m2
Report an Error
Ask A Question
Download App
Quick Questions
Contributions ({{ comment_count }})
Please wait...
Modal title
Report
Block User
{{ feedback_modal_data.title }}