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100% GER lun 4 mag 04:29 PM Firefox File Edit View History Bookmarks Tools Window Help e O O E: Lecture 4-24-15 Chapter x rn Homework 20 General x P Pandora Internet Radio L... x C Chegg.com C a Search 3 moodle poodle.com mod/quiz/attempt.php?attemp 15609 Most Visited Getting started U owL CHEM User D Disney E ESPN Yahoo! Keepvid: Downlo... Apple E Yahoo! Google Maps o YouTube Notizie If V, 9.00 V, V. 3.00 V, R 440.00, R 52.00, and R 993.00, find the magnitude of the current across R in milliAmperes Answer: Question 3 A A A Not yet answered Marked out of 1.00 P Flag question If V, 6.00 V, V. 9.00 V, Ro 248.00, R 87.00, and R. 596.0 Q, find the magnitude of the current across Ro in milliAmperes Answer: Next

Explanation / Answer

by using kirchhoff's law,

let

current in first loop is i1

current in second loop is i2

====>

v1-i1*R1-(i1+i2)*R2-i1*Ro=0

v1=i1*R1+(i1+i2)*R2+i1*Ro -----(1)

and

-v3-(i1+i2)R2=0

i1+i2=-v3/R2

=-9/596

=-0.015 A

now from (1),

v1=i1*R1+(i1+i2)*R2+i1*Ro

6=i1*187-0.015*596+i1*248

===>

i1=0.03448 A

=34.48 mA ......is answer

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