For the circuit shown in the figure, I = 0.50 A and R = 12 . What

For the circuit shown in the figure, I = 0.50 A and R = 12 Ω. What is the value of the emf ε? The answer is 24 V, but I don't understand how this is the answer. The two resistors measuring 2R each, are parallel, so shouldn't it be: (1/Rparallel) = (1/2R) + (1/2R) (1/Rparallel) = (2/2R) (1/Rparallel) = (1/R) Rparallel = 1/(1/R) Rparallel = R = 12 ohms Rtotal = R + Rparallel = R + R = 12 ohms + 12 ohms = 24 ohms ε = IR = 0.5 A * 24 ohms ε = 12 V This is the answer I get, how is the answer that is marked correctly 24 V?

Transcribed Image Text:

+ 67 W R W 2R WW 2R + 67 W R W 2R WW 2R

Answer rating: 100% (QA)

Let the current passing through the resistor R is I this ... View the full answer