Tashkent university of information technologies named after muhammad al-khwarizmi

TASHKENT UNIVERSITY OF INFORMATION TECHNOLOGIES

NAMED AFTER MUHAMMAD AL-KHWARIZMI

Department of "Electronics and Radio Engineering"

INDEPENDENT WORK

Topic. Methods for calculating electrical circuits

Performed _________________

Checked by: Narkulov Kh.Yu.

Tashkent-2021

Variant№ 6

1. 
   Solve the problem.
   

Make equations according to Kirchoffs 2 low and determine the voltage across the resistors (voltage drop across the resistors).

What is the Kirchoffs 2 low and about it .

Kirchhoff’s second law, also known as the Kirchhoff’s voltage law (KVL) states that the sum of all voltages around a closed loop in any circuit must be equal to zero. This again is a consequence of charge conservation and also conservation of energy.

Here in this short piece of article, we will be discussing Kirchhoff’s second law.

Kirchhoff’s Voltage Law

Kirchhoff’s Second Law or the voltage law states that

The net electromotive force around a closed circuit loop is equal to the sum of potential drops around the loop

It is termed as Kirchhoff’s Loop Rule, which is an outcome of an electrostatic field that is conservative.

Hence,If a charge moves around a closed loop in a circuit, it must gain as much energy as it loses.

The above can be summarized as the gain in energy by the charge = corresponding losses in energy through resistances

Mathematically, the total voltage in a closed loop of a circuit is expressed as

∑V=0.

The below figure illustrates that the total voltage around a closed loop must be zero.
This law manages the voltage drops at different branches in an electrical circuit. Consider one point on a closed loop in an electrical circuit. If somebody goes to another point in a similar ring, he or she will find that the potential at that second aspect might be not quite the same as the first point.

If he or she keeps on setting off to some unique point on the loop and he or she may locate some extraordinary potential in that new area. If he or she goes on further along that closed-loop, eventually he or she achieves the underlying point from where the voyage was begun.

Solving :