Data: lk (final wire length) = 1/2 ln (initial wire length); ρ (electrical resistivity) = const; S (wire section) = const. The change in the resistance of the
Data: Iк (final current strength) = 1/4 Iн (initial current strength); R (circuit resistance) = const. To find the voltage change in the specified circuit, we use the
A regular polygon is a polygon with equal sides and angles. Since our dodecagon is regular, the radius of the circumscribed circle of a regular polygon is found