THE USE OF COMPUTER-INTEGRATED TECHNOLOGIES IN THE PROCESS OF TEACHING PHYSICS
Authors:   Vinnytsia National Technical University, Ukraine, Dzis Viktor , Diachynska Olena ,   Vinnytsia National Agrarian University, Ukraine
Published: May 2023

Currently, there is a need to design an open informational and educational environment that will ensure a decent level of organization of the educational process in the mixed and distance forms of learning, make it flexible and personalized. The use of the Mathcad mathematical package when solving problems is an effective tool for improving the quality of the professional education in general and physics in particular. Facilitating learning due to the automation of calculations increases the level of students' mastery of the physical essence of the tasks, the level of students' educational achievements, and their motivation for the learning process.The purpose of the work is the development of methodical material for optimizing the process of learning physics, which should help students overcome barriers associated with the imperfect educational skills and skills in the field of mathematics, simplify mathematical calculations and focus all attention on the physical essence of the task. Calculations of the electrical circuits of the alternating current are quite typical tasks. Branched electrical circuits of the alternating current are described by cumbersome mathematical functions of a complex variable. They are well suited to illustrate the benefits of the Mathcad system. The algorithm for solving the problem in this case consists of three quarters of the analysis of the electrical circuit, and the mathematical calculation is reduced to the solution of the system of equations [14]. Their exact solution is quite a difficult task, however, to solve most engineering problems, it is enough to construct their approximate solutions. When calculating real electrical circuits, it is necessary to take into account voltage fluctuations, changes in the parameters of electrical circuit elements caused by heating during the passage of current, accuracy classes of resistors, inductors, and capacitors. Therefore, such calculations are performed with approximate parameter values, so it is necessary to estimate the limit value of the calculation error. But with the general simplicity of setting the problem of error estimation, it is the mathematical calculation that causes significant difficulties, which is connected with the differentiation of cumbersome functions of a complex variable. A set of differential calculus functions is built into the Mathcad package, using which the student will successfully cope with the task, despite the complexity of its mathematical component.A method of researching the frequency characteristics of the alternating current electric circuits is proposed. Its use makes it possible to determine the main frequency characteristics of an electric circuit quite effectively and to estimate their errors.As a result of research, there is no need to explicitly find the roots of complex equations in this method. The resonant frequencies of the oscillating circuit are determined by the method of optimizing the mathematical model. The initial approximations of resonance frequencies are determined from the resonance curve and refined to the required accuracy by means of the Mathcad system. The limit values of the oscillating contour parameter errors are estimated by the classical method of logarithmization, which has been modernized for the function of a complex variable.It was found that at resonant frequencies of the circuit, the value of the relative error of the current increases sharply.