Fizyka-11-klas-Barjakhtar-2019
Formulas:
U = U1 + U2 + … + Un
P = UI
I = \frac{\varepsilon}{R+r}
Q = I^2Rt
R = p \frac{l}{s}
R = R_0 (1 + at)
I = \frac{\varepsilon}{R+r}
U = \frac{neS}{I}
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Textbook for 11th grade by V.G. Baryakhtar, S.O. Dovgiy, F.Ya. Bozhinova, O.O. Kiryukhina, 2019 edition.
Recommended by the Ministry of Education and Science of Ukraine (order № 472 from 12.04.2019).
Internet support is available: interactive.ranok.com.ua
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Textbook features:
"Summarizing" section with key concepts.
"Control Questions" to check understanding.
"Exercise" section with differentiated tasks (blue - simple, to violet - complex).
Experimental tasks.
Internet support with videos, information, tests, and examples.
"Summarizing the Section" and "Tasks for Self-assessment" for review.
"Physics in Figures" connecting technology and learning.
"Physics and Technology in Ukraine" and "Encyclopedic Page" for history.
"Professions of the Future" for career guidance.
Page 4: Conditions for the Existence of Electric Current
Electric current is the directed (ordered) movement of particles having an electric charge
The two necessary conditions for the emergence and maintenance of electric current are:
The presence of free charged particles, which act as current carriers