Passage II

Physics students studied electrical current and resistance using the electrical circuit shown in Figure 1 below.

The students determined the electrical current, I, flowing through each of 3 devices—a resistor, a lightbulb, and a diode—for various voltages,

9. Based on Figures 2 and 3, when R for the diode equaled 60 Ω, I for the diode was closest to which of the following?

Answer and Explanation

Your Answer is

Correct Answer is A

Explanation

Look at figure 3 first, when R=60, V=0.7 corresponding to the diode;

Look at figure 2 again, when V=0.7, I=12