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Question 17: NCERT Solutions for 12th Class Physics: Chapter 3-Current Electricity

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Question 17: NCERT Solutions for 12th Class Physics: Chapter 3-Current Electricity

What conclusion can you draw from the following observations on a resistor made of alloy manning?

 

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1 Answer

  1. Solution:
    We can find resistance of the alloy manganin for all the readings as follows:

    Here we can conclude that Ohm’s law is valid to a high accuracy and resistance of the alloy is nearly constant at all currents.

    Check the complete chapter with solutions.

    NCERT Solutions for 12th Class Physics: Chapter 3-Current Electricity

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