Unit-2: Chp-2: Kirchhoff's Law and electrical measurements
PHYSICXION: Kirchhoff's laws are two fundamental laws of electrical circuits. They are named after Gustav Kirchhoff.
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Kirchhoff's laws are two fundamental laws of electrical circuits. They are named after Gustav Kirchhoff, a German physicist and mathematician who formulated them in 1845. To apply Kirchhoff's laws, it is necessary to choose a set of reference directions for the currents and voltages in the circuit. The reference direction for a current is the direction in which the current is assumed to flow. The reference direction for a voltage is the direction from the higher potential to the lower potential.
Once the reference directions have been chosen, Kirchhoff's laws can be applied to the circuit. The KCL is applied to each junction in the circuit. The KVL is applied to each closed loop in the circuit.
A brief view of its history:
The historical development of Kirchhoff's laws can be traced back to the early 1800s, when scientists were beginning to understand the basic principles of electricity. In 1827, Georg Ohm published his law, which states that the current flowing through a conductor is directly proportional to the voltage applied across the conductor and inversely proportional to the resistance of the conductor. Kirchhoff was a student at the University of Berlin when he first became interested in Ohm's law. He realized that Ohm's law could be used to derive two important laws of electrical circuits, which he called Kirchhoff's current law (KCL) and Kirchhoff's voltage law (KVL). Kirchhoff published his laws in 1845, and they quickly became the foundation of electrical circuit analysis. Today, Kirchhoff's laws are still used by engineers and scientists to design and troubleshoot electrical circuits.
Once the reference directions have been chosen, Kirchhoff's laws can be applied to the circuit. The KCL is applied to each junction in the circuit. The KVL is applied to each closed loop in the circuit.
A brief view of its history:
The historical development of Kirchhoff's laws can be traced back to the early 1800s, when scientists were beginning to understand the basic principles of electricity. In 1827, Georg Ohm published his law, which states that the current flowing through a conductor is directly proportional to the voltage applied across the conductor and inversely proportional to the resistance of the conductor. Kirchhoff was a student at the University of Berlin when he first became interested in Ohm's law. He realized that Ohm's law could be used to derive two important laws of electrical circuits, which he called Kirchhoff's current law (KCL) and Kirchhoff's voltage law (KVL). Kirchhoff published his laws in 1845, and they quickly became the foundation of electrical circuit analysis. Today, Kirchhoff's laws are still used by engineers and scientists to design and troubleshoot electrical circuits.
- Kirchhoff's laws were originally formulated for electric circuits, but they can also be applied to other physical systems, such as fluid flow and heat conduction.
- Kirchhoff's laws can be applied to circuits with non-linear components, such as transistors and diodes. However, the equations that are generated may be more complex than for circuits with linear components.
- Kirchhoff's laws can be used to analyze circuits with time-varying voltages and currents. However, the equations that are generated may be more difficult to solve.
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CLASS NOTES :
Here full Class Notes PDFs are attached, which will help you to score well in the exam.
NOTE-1: Theory of Introduction to Kirchhoff’s Law and electrical measurements.
NOTE-2: Solved Numerical (Easy and moderate level descriptive problems)
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