If V = 40 V and the battery is ideal, what is the potential difference across R₁ in the figure? A) 6.7 V B) 8.0 V C) 10 V D) 20 V

Question

Quizplus · Accepted Answer

Since the battery is ideal, the potential difference across RS1 and U1 must be equal to 40 V. Therefore, the potential difference across U1B must also be 40 V. Since there is no current flowing through the parallel branches, the potential difference across U1B and the 2 resistors in series (S1 and U1B0) must be equal to the potential difference across U1B, which is 40 V.

Using voltage division, we can find the potential difference across RS1U1B11:

V(RS1U1B11) = (RS1U1B11 / (RS1U1B11 + S1U1B0)) * 40 V

V(RS1U1B11) = (4 / (4 + 6)) * 40 V

V(RS1U1B11) = 8 V

Therefore, the potential difference across RS1U1B11S1U1B0 is 8 V.

If V = 40 V and the Battery Is Ideal