Engineering Board Exam Reviewer · Parallel Circuits · hard

In the circuit shown, the current source supplies I=6 A to the parallel resistors R1=12, , R2=8, , and R3=24, . Find the current through R2.

  1. 3 A
  2. 2 A
  3. 0.67 A
  4. 6 A

Answer

A. 3 A

Solution

The voltage across the parallel group is V=I,Req with Req=4, , so V=(6 A)(4, )=24 V. Then I2=V/R2= 24 V8, =3 A.

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