Help
Contact
For teachers and institutes
Search courses, problems, tests…
A
A
>_
StemPy Lab
Courses ▾
Problems ▾
Practice ▾
Mock Tests
Classes
Community ▾
A
A
A wire is drawn through a die, so that its length… | StemPy Lab
Quizzes
/
A wire is drawn through a die, so that its length becomes 3 times as large. Its volume does not change. How many times larger is its resistance?
Physics
Medium
High School (11–12)
Electricity & Magnetism › Current Electricity
Board Exam
AP
A-Level
IB
Created by
StemPy Lab
A wire is drawn through a die, so that its length becomes
3
3
3
times as large. Its volume does not change. How many times larger is its resistance?
27
27
27
9
9
9
6
6
6
3
3
3
Check Answer
Log in to save
Tag someone
⚑ Report
← All Quizzes
← An experimenter winds 5.5 m of alloy wire, 1.6 mm in diameter, into a rheostat. The alloy has ρ = 6.8 × 10⁻⁷ Ω m. How large is the resistance of the winding?
A metal wire is heated. What happens to the relaxation time of its electrons, and to its resistivity? →
More on
Electricity & Magnetism › Current Electricity
Discussion (0)
Log in
to join the discussion.
Loading…
Problems on this topic
Two equal capacitors, each of C = 100 µF, and two equal resistors, each of R = 10 kΩ, make a…
Advanced
A potentiometer measures the emf of an old cell as 1.50 V…
Hard
A potentiometer wire is 400 cm long and has a resistance of 8.0 Ω…
Medium
A potentiometer wire has a gradient of 2.5 mV/cm…
Medium
All problems on this topic →