The voltage across a metal wire is doubled, and the… | StemPy Lab

Help Contact For teachers and institutes

Mock Tests Classes Groups

StemPy Lab

Learn. Solve. Code the solutions. Test yourself.

Live examsFree mock exams, timed and rankedEveryone starts together, and your score and rank come the moment it ends.See the exams →

Learn

Physics
Chemistry
Mathematics
Biology
Python Programming
Statistics & Data Science
Classes
Groups

Practice

Problems
Quizzes
Mock Tests
Prepare for an Exam
Question Sets
Exams
Certificates
Python Labs
AI Practice Generator
Student-Created Tests

Community

Discussions
Resources
Notes
Blog

Account

Dashboard
My Content
Profile
Log in

© 2026 senLearn. All rights reserved.Help About Contact Privacy Policy Terms of Use Refund Policy

The voltage across a metal wire is doubled, and the… | StemPy Lab

Quizzes
The voltage across a metal wire is doubled, and the temperature stays the same. What happens to the mobility of its electrons?

PhysicsMediumHigh School (11–12)Electricity & Magnetism › Current Electricity

Created by StemPy Lab

The voltage across a metal wire is doubled, and the temperature stays the same. What happens to the mobility of its electrons?

← All Quizzes

← Two copper wires carry the same current. Wire P is 7.0 mm across and wire Q is 1.4 mm across. How many times faster do the electrons drift in Q than in P?Find the resistance of a 5.1 m length of constantan wire, of diameter 0.70 mm. Constantan has ρ = 4.9 × 10⁻⁷ Ω m. →

More onElectricity & Magnetism › Current Electricity

Discussion (0)

Log in to join the discussion.

Loading…

More questions on this topic

A student cannot read the internal resistance of a cell directly. She finds its null point on a…Hard
A potentiometer measures the emf of a cell more accurately than a voltmeter does, because at…Medium
Two cells balance on a potentiometer wire at 140 cm and 210 cm. What is the ratio of their emfs…Medium
A student finds the resistance of a coil with a meter bridge. The coil is in the left gap and an…Medium
The measurement in a meter bridge is most accurate when the balance point is nearMedium

All questions on this topic →

Problems on this topic

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
A standard cell of 1.20 V balances on a potentiometer wire at 340 cm…Easy

All problems on this topic →