physics problems involving ohm's law

Current through a given area of a conductor is the net charge passing per unit time through the area. To maintain a steady current, we must have a closed circuit in which an external agency moves electric charge from lower to higher potential energy. The work done per unit charge by the source..

Voltage or current in simple direct current electric circuits Problems involving Ohm's law Formula for power (rate of energy dissipation) in any resistive circuit element Properties of transistors and their role in electric circuits Electric fields ..

Voltage or current in simple direct current electric circuits Problems involving Ohm's law Formula for power (rate of energy dissipation) in any resistive circuit element Properties of transistors and their role in electric circuits Electric fields ..

It is found experimentally that the current I flowing through a conductor is directly proportional to the potential difference V across its ends, provided the physical conditions (temperature, mechanical strain, etc.,) remain constant. That ..

In the year 1820 a French physicist, Andre Ampere made many discoveries on the nature of electricity. While a German physicist, Georg Ohm showed that the flow of an electric current through a wire depended on its 'resistance' and the potential difference between its e..

Ohm's law is not a fundamental law of nature. There are a number of commonly used circuit elements which do not obey this law..

Electricity, Heating, Magnetic Effects..

Limitations of Ohm's Law - Ohm's law is not a fundamental law of nature. There are a number of commonly used circuit elements which do not obey this law. They have one or more of the following properties: 1. V depends on I non-linearly. 2...

The current through a conductor is proportional to the potential difference between its ends, provided the temperature of the conductor remains consta..

Law of Combination of Resistance in Parallel - Connect two resistors 'R 1 ' and 'R 2 ' in parallel to one another between the points A and B. Connect this combination to a battery of potential 'V..