Rheostat in Urdu Hindi || 12th Class Physics - Chapter# 13

In this video you will learn about Rheostat , from chapter 13 second year physics for all punjab boards, you will also learn the difference between resistance and resistivity, how resistivity varies with temperature and what is temperature coefficient of resistivity and Resistance, Morever conductivity and conductance is also discussed.

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                      Important Videos 📹
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❤ OHM LAW


👉OHM Law in Urdu Hindi || 12th Class P...



❤ CURRENRT THROUGH A METALLIC CONDUCTOR


👉Current through a Metallic conductor ...



❤ Short Questions OF CHAPTER 13


👉Short Questions of Chapter 13 || 12th...








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