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Help Quiz Two Readings & Vidxy A PHYS 251 PS #08-Curre G 16-12-Google Search C w

ID: 777250 • Letter: H

Question

Help Quiz Two Readings & Vidxy A PHYS 251 PS #08-Curre G 16-12-Google Search C www.webassign.net/web/Student/Assignment-Responsessubmit?depa17535131 x e G 29 0/2 points | Previous Answers KnightCP2 23 P051 How much power is dissipated by each resistor in the figure below, in which V + 12 V and R2 - 18 1? resistor 1 12 resistor 2 8 R, 12 VE Go to the simulation at http://phet.colorado.edu/en/simulation/circuit-construction-kit-de (Click on "Download" and ther Windows machine) or http://phet.colorado.edu/sims/circuit-construction-Kit/circuit-construction-kit-de en.jnlp. [If this w on your computer, please try another browser or computer. It should work on campus lab computers. It works on all the 14· 5/5 points 1 Previous Answers n Center in Osmond 207.] ronnect the Amm

Explanation / Answer

given R1 = 12 ohm

R2 = 18 ohm

E = 12 V

as R1 and R2 are in series so

Req = R1+R2 = 12+18 = 30 ohm

current in each = i = E/Req = 12/30 = 0.4 A

we know that heat dissipated in R = P = i2R

a) in R1

P1 = i2R1

= (0.4)2 x 12

= 1.92 W

b)

in R2

P2 = i2R2

= (0.4)2 x 18

= 2.88 W

answer