Home
Class 12
PHYSICS
The resistivity of alloy manganin is...

The resistivity of alloy manganin is

A

Nearly independent of temperature

B

Increases rapidly with increase in temperature

C

Decrease with increase in temperature

D

Increase rapidly with decrease in temperature

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    NCERT FINGERTIPS|Exercise Temperature Dependence Of Resistivity|7 Videos
  • CURRENT ELECTRICITY

    NCERT FINGERTIPS|Exercise Electrical Energy, Power|7 Videos
  • CURRENT ELECTRICITY

    NCERT FINGERTIPS|Exercise Limitations Of Ohm'S Law|4 Videos
  • COMMUNITCATION SYSTEMS

    NCERT FINGERTIPS|Exercise HOTS|10 Videos
  • DUAL NATURE OF RADIATION AND MATTER

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

Similar Questions

Explore conceptually related problems

Choose the correct alternatives : (a) Alloys of metals usually have (greater/less) resistivity than that of their constituent metals. (b) Alloys usually have much (lower/higher) temperature coefficients of resistance than pure metals. (c ) The resistivity of the alloy manganin in (nearly independent of/ increase rapidly ) with increase of temperature. (d) The resistivity of a typical insulator (e.g. amber) is greater than that of a metal by a factor of the order of (10^(22) or 10^(3)) .

The resistivity of alloys is usually

What is the effect of temperature on the resistivity of alloys ?

The resistance of an alloy

The resistivity of alloys =R_(alloy) , the resistivity of constituent metals R_("metal") . Then, usually

A 10V stroage battery of negligible internal resistance is connected across a 50Omega resistor made of alloy manganin. How much heat energy is produced in the resistor in 1h? What is the source of this energy?