Q15. A circuit comprising a DC voltage source, three resistors, and two LEDS is shown, where R=1 2, R1 = 2 2, and R2 is a variable resistor. The forward voltage drops of Li and L2 are VF1 = 2.2 V and VF2 = 2.8 V, respectively. It is known that L1 consumes 15% more power than L2 does when R2 = 2 2. To make Li and L2 consume equal power, what should the value of R2 be? Choose the value that is closest to the answer. I I2 R R1 R2 v (+ Li V L А. 1.608 N В. 1.717 N C. 1.859 N D. 2.306 N Е. Unsolvable because the given information is insufficient.

Q15. A circuit comprising a DC voltage source, three resistors, and two LEDS is shown, where R=1 2, R1 = 2 2, and R2 is a variable resistor. The forward voltage drops of Li and L2 are VF1 = 2.2 V and VF2 = 2.8 V, respectively. It is known that L1 consumes 15% more power than L2 does when R2 = 2 2. To make Li and L2 consume equal power, what should the value of R2 be? Choose the value that is closest to the answer. I I2 R R1 R2 v (+ Li V L А. 1.608 N В. 1.717 N C. 1.859 N D. 2.306 N Е. Unsolvable because the given information is insufficient.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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