Home
Class 12
PHYSICS
Why electric current should not be passe...

Why electric current should not be passed through potentiometer wire for a long time continuously?

Text Solution

Verified by Experts

Because resistance of wire increases due to heating effect of current. So fall of potential per unit length of the wire will not remain same.
Promotional Banner

Topper's Solved these Questions

  • ELECTRICAL MEASUREMENTS

    BETTER CHOICE PUBLICATION|Exercise Short Answer Type Questions|15 Videos

  • ELECTRICAL MEASUREMENTS

    BETTER CHOICE PUBLICATION|Exercise Long Answer Type Questions |7 Videos

  • ELECTRICAL DEVICES

    BETTER CHOICE PUBLICATION|Exercise (MOST EXPECTED QUESTIONS 2 MARK)|2 Videos

  • ELECTROMAGNETIC INDUCTION

    BETTER CHOICE PUBLICATION|Exercise NUMERICAL PROBLEMS|26 Videos

Similar Questions

Explore conceptually related problems

Do all liquids allow electric current to pass through them?

A current is passed through a spring, then the spring will:

An electric current is passed through a circuit containing two wires of the same material, connected in parallel. If the lengths and radii are in the ratio of 4/3 and 2/3, then the ratio of the current passing through the wires will be