Physics Art Integration
Storyboard Text
- OHM'S LAWAt a constant temperature the current flowing through a conductor is directly proportional to the potential difference across the conductor.V=IR (where V=Potential difference; I=Current; R=Resistance)
- Ma'am does the resistance vary from conductor to conductor? Or is it same throughout?
- PHYSICS
- Ok dear, now let us learn the factors that affect the flow of current in a conductor which is Resistance.
- So students have you understood the concept of the Ohm's law? Ask me if you have any doubts
- 1. Resistance is directly proportional to length. R α LWhich means more the length of the conductor, more will be the resistance of the conductor.
- Factors on which resistance depends.
- 2. Resistance is inversely proportional to the thickness of the conductorR α 1/AWhich means more the area of cross section of the conductor, more will be the resistance of the conductor.
- Factors on which resistance depends.
- 3. Resistance of a conductor depends on the nature of the material used. Conductors such as copper, silver, and aluminium have the least resistance, whereas insulators such as glass, rubber and paper have greater resistance.
- Factors on which resistance depends.
- 4. Resistance of a conductor is proportional to the temperature.R α Temperature When heat is supplied to the conductor the resistance of the conductor increases.
- Factors on which resistance depends.
- Thank you for your sweet compliments children. We will together engage, evolve and learn.
- So students, I hope you have understood a very important concept of resistance.
- I now absolutely don't have a single doubt on this concept, all thanks to you ma'am!!!
- Yes ma'am we are now very sure and clear about the concept of resistance. THANK YOU MA'AM!!!
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