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| Electric Currents in Conductors Refresher Course |
| Electric Currents in Conductors Concept Course |
| Electric Currents in Conductors Master File |
| Electric Currents in Conductors : Revision Notes |
| Electric Currents in Conductors : Brain Map |
| Reference Book Physics: Electric Currents in Conductors |
| H C Verma Physics Exercise Solution: Electric Currents in Conductors |
| Resnick Halliday Physics: Electric Currents and Resistance |
| Resnick Halliday Physics Solution: Electric Currents and Resistance |
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| I E Irodov Solutions for IIT JEE (Main) Physics – Electric Currents in Conductors |
About this unit
Electric current, flow of electric charges in a metallic conductor, drift velocity and mobility, and their relation with electric current; Ohm’s law, electrical resistance, V-I characteristics (liner and non-linear), electrical energy and power, electrical resistivity and conductivity. Carbon resistors, colour code for carbon resistors; series and parallel combinations of resistors; temperature dependence of resistance. Internal resistance of a cell, potential difference and emf of a cell, combination of cells in series and in parallel. Kirchhoff’s laws and simple applications. Wheatstone bridge, metre bridge. Potentiometer-principle and applications to measure potential difference, and for comparing emf of two cells; measurement of internal resistance of a cell.