NCERT 12th Class Physics Ohm’s Law and Resistance Ohm’s Law Ohm’s law: It states that “the current flowing through a conductor is directly proportional to potential difference between the ends of the conductor provided physical conditions like temperature, pressure etc. remain the same”. i.e. VαI or V = IR Here V is apotential difference,I is current and R is Resistance of the conductor. Resistance: It is the ability of a conductor to oppose the flow of electric current . SI unit of resistance is ohm. Factors on which resistance of a conductor depends: Nature of the material of the conductor Length of the conductor ‘ l’ Area of cross-section ‘A’ Temperature ie R ∝ l R ∝ 1/A R= 𝜌 l/A Where 𝜌 is resistivity of the material of the conductor. What to study the same topic in Hindi? click on Physics in Hindi The resistivity of thematerial of a conductor: 𝜌=RA/ l If we have A=1m 2 and l =1m So 𝜌=R The resistivity of the material o
Takshila Learning has a great faculty and they have their own unique style of teaching and communicating ideas which enables the students to handle any situation with ease and come out with flying colors. By adding this online medium for teaching various courses, they have not only widened our options but have made it