Voltages in the sections of the sequential electric circuit U1 = 100 V, U2 = 30 V

Voltages in the sections of the sequential electric circuit U1 = 100 V, U2 = 30 V, U3 = 75 V, U4 = 150 V. Which section has the greatest resistance?

Data: U1 (voltage on the first section of the circuit) = 100 V; U2 (second section) = 30 V; U3 (third section) = 75 V; U4 (fourth section) = 150 V.

Since the current strength in any part of the series electric circuit is constant, and the resistance is directly proportional to the voltage and inversely proportional to the current strength, the fourth section of the circuit will have the greatest resistance (U4 = 150 V).

Rmax = Umax / I and R4> R1> R3> R2.

Answer: The fourth section has the greatest resistance.