R1=2ом R2=4ом R3=5ом I1=2А t=1мин A=? P=? I2=? I3=?

A = (R1 + R2 + R3) * I1 * t A = (2 + 4 + 5) * 2 * 1 = 22

P = A / t P = 22 / 1 = 22 Вт

I2 = I1 I2 = 2 А

I3 = 0 Since there is no component connected to R3, the current through R3 is 0 А.