Some of the main topics for Physics chapter Current Electricity (Class 12) along with their details are:
1) Electric Current: The topic
explains the concept of electric current, its definition, unit of measurement,
and how it flows. The learners will also understand the differences between
conventional and electron flow, and the factors affecting the magnitude of
current.
2) Ohm's Law: The learners will learn about the Ohm's Law which states that the current flowing through a conductor is proportional to the potential difference across its ends and inversely proportional to its resistance. The topic covers various numerical problems based on Ohm's law.
3) Electrical Resistance: The topic explains the concept of electric resistance, its definition, factors affecting resistance, types of resistors, and their color code. The learners learn about the temperature dependence of resistance and how to calculate the resistance of a conductor at a given temperature.
4) Electrical Energy and Power: The topic explains the concept of electrical energy, unit of measurement, how to calculate energy and power dissipated in a circuit. The learners will also understand the cost-effectiveness of different electrical appliances based on their power consumption.
5) Kirchhoff's Laws: The topic explains the Kirchhoff's laws, which deal with the conservation of charge and energy in a closed circuit. The learners will learn about the junction rule and loop rule, their applications, and numerical problems.
6) Wheatstone Bridge: The topic explains the Wheatstone bridge, a type of circuit used to measure unknown resistances accurately. The learners will understand the principle of Wheatstone bridge and how to calculate the unknown resistance.
7) Potentiometer: The topic covers the concept of a potentiometer, a device used to compare emf's of two cells, determination of the internal resistance of a cell and the potential difference across a resistor. The learners will learn about the measuring principle of a potentiometer, its working, and numerical problems.
The chapter Moving Charges and Magnetism in Class 12 Physics is an important one and covers the following main topics in detail:
More Chapters:-
Main topics for Moving Charges and Magnetism
Main topics for Magnetism and Matter
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