REMARKS There\'s something important to notice in part (a) the smallest 3.0 resi

Question

REMARKS There's something important to notice in part (a) the smallest 3.0 resistor carries the largest current, whereas the other, larger resistors of 6.0 and 9.0 carry smaller currents. The largest current is always found in the path of least resistance. In part (b) the power could also be found with . (An/R. Note that Pi-108w, but is rounded to 110 w because there are only two significant figures. Finally, notice that the total power dissipated in the equivalent resistor is the same as the sum of the power dissipated in the individual resistors, as it should be QUESTION If a fourth resistor were added in parallel to the other three, how would the equivalent resistance change? O it would be larger 0 lt would be smaller. O More information is needed to determine the effect. EXERCISE HINTS: 0ETTING STARTED STUCK! Suppose the resistances in the example are R1 = 2.4 , R2 = 4.8 and R3 = 7.2 , respectively, and a new voltage source is provided. If the current measured in the 72- resistor is 1.5 A, find the following (a) the potential difference provided by the new battery and the currents in each of the remaining resistors A Isimilar to figure above) A U similar to figure above) (b) the power delivered to each resistor and the total power (c) the equivalent resistance (d) the total current and the power dissipated by the equivalent resistor 1583 How is the total power output related to the power output of the individual resistors in the circuit? W Need Help? Raa

Explanation / Answer

d) total current is

i = i1+i2+i3

i = 1.5 +4.5 +2.25 = 8.25 A

total power =V2/R

V = 10.8 V

R = 1.31 ohms

that gives total power

P = 89.04 W

Related Questions

Navigate

• Browse (All)
• Browse R
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.