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Series-Parallel Circuits - Technical MCQs

Q1:

What is the total resistance of the given circuit?

A 92 omega.gif

B 288 omega.gif

C 17.7 omega.gif

D 128 omega.gif

ANS:A - 92 omega.gif

r2*r4 /r2+r4 = 40

40*r3 /40+r3 =24

Therefore finally series of resultant of those paralle combination with 68 ohm resistance equals to 92 ohms.