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WileyPLUS c Secure https//edugen.wileyplus.com/edugen/student/maintr.uni WileyPLUS: MyWileyPLUSIHelpI Contact Us I Log Out US Halliday, Fundamentals of Physics, 10e GENERAL PHYSICS (201/202/301) Practice Gradebook ORION Downloadable eTextbook signment FULL SCREEN PR?NTER VERS?ON .BACK Iceou NEXT Your answer is partially correct. Try again. In the figure R1-78.0 ?, R2-R3-43.0 ?. R4-66.8 ?, and the ideal battery has em f ?-6.00 V (a) what is the equivalent resistance? What is i in (b) resistance 1, (c) resistance 2, (d) resistance 3, and (e) resistance 4? (a) N 265 0.0636S (c) N (d) Number (e) N Click if you would like to Show Work for this question: Open Show Work UnitsTA 0.24097 Unit ,

Explanation / Answer

From the figure,

R2 , R3 and R4 are in parallel.

equivalent resistance of this combination,

1 / R = 1 / 43 + 1 / 43 + 1 / 66.8

R = 16.26 ohm

This is series with R1.

Equivalent resistance of circuit,

Req = 16.26 + 78

Req = 94.26 ohm

(b)

total current in the circuit,

l = V / Req = 6 / 94.26

l = 0.0636 A

current in R1 = 0.0636 A

(c)

voltage across R1 = 0.0636*78 = 4.96 V

Volatge across 3 parallel resisatnce, V = 6 - 4.96

V = 1.035 V

current in R2, i2 = 1.035 / 43

i2 = 0.02407 A

(d)

current in R3, i3 = 0.02407 A

(e)

current in R4, i4 = 1.035 / 66.8

i4 = 0.0154 A

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