Current Electricity
Science Solutions from Chapter -1 - Current Electricity
This chapter sheds light on the current electricity. It discusses the sources of direct current, electric circuits, and detection of current through diagrams. It also describes Ohm’s law, electrical resistance, and conductors and insulators.
Practice Other Topics from Current Electricity
This topic will help to learn about electric circuits, that is movement of electric charge from one point to another. It also explains the concept of direct current and alternating current and the difference between them.
In this topic, we will learn that in Ohm’s law the current flowing through a conductor is directly proportional to the potential difference at its ends. The constant of proportionality is called resistance. Variable resistance is used to regulate current without changing voltage.
In this topic, we will learn electrical resistivity and how to calculate the electrical resistance. It describes the resistance of some materials at room temperature. We will discuss the variation in resistance with change in temperature.
This topic will explain the meaning of the electromotive force, terminal voltage and the internal resistance of a cell. It also mentions the differences between the EMF and internal resistance and factor affecting the terminal voltage of a cell.
This topic will show the parallel and series combination of resistors in a circuit. It also shows how combination will affect the flow of current in a circuit.
