Engineering Board Exam Reviewer · Series-Parallel Circuits · medium

In the circuit shown, V=23 V, R1=20, , R2=7, , R3=5, , and R4=4, . Find the total current supplied by the source.

  1. 1 A
  2. 0.64 A
  3. 1.15 A
  4. 2 A

Answer

A. 1 A

Solution

RT=R1+[(R2+R3) R4]=20, +3, =23, , so IT=V/RT= 23 V23, =1 A.

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