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Home ‣ Electrical Engineering ‣ Branch, Loop and Node Analyses Comments
  • Question

  • The expansion method for evaluating determinants is


  • Options
  • A. better than any other method
  • B. good for only one determinant
  • C. more flexible than the cofactor method
  • D. good for second- and third-order determinants

  • Correct Answer
  • good for second- and third-order determinants 

    • Branch, Loop and Node Analyses problems

    Search Results

    • 1. The first row of a certain determinant has the numbers 10 and 6. The second row has the numbers 3 and 5. The value of this determinant is

    • Options
    • A. 18
    • B. 50
    • C. 32
    • D. ?32
      • Discuss
    • 2. Find the node voltage VA.


    • Options
    • A. 6 V
    • B. 12 V
    • C. 4.25 V
    • D. 3 V
      • Discuss
    • 3. In assigning the direction of branch currents,

    • Options
    • A. the directions are critical
    • B. the directions are not critical
    • C. they must point into a node
    • D. they must point out of a node
      • Discuss
    • 4. The branch current method uses

    • Options
    • A. Kirchhoff's voltage and current laws
    • B. Thevenin's theorem and Ohm's law
    • C. Kirchhoff's current law and Ohm's law
    • D. the superposition theorem and Thevenin's theorem
      • Discuss
    • 5. In a certain five-step R/2R ladder network, the smallest resistor value is 1 kΩ. The largest value is

    • Options
    • A. indeterminable
    • B. 2 kΩ
    • C. 10 kΩ
    • D. 20 kΩ
      • Discuss
    • 6. What is the current through R2?


    • Options
    • A. 177 mA
    • B. 250 mA
    • C. 500 mA
    • D. 125 mA
      • Discuss
    • 7. Find branch current IR2.


    • Options
    • A. 5.4 mA
    • B. ?5.4 mA
    • C. 113.0 mA
    • D. 119.6 mA
      • Discuss
    • 8. Find I1.

      4I1 + 4I2 = 2
      6I1 + 7I2 = 4


    • Options
    • A. 0.5 A
    • B. 50 mA
    • C. ?0.5 A
    • D. ?50 mA
      • Discuss
    • 9. What is the current through R2?


    • Options
    • A. 3.19 A
    • B. 319 mA
    • C. 1.73 A
    • D. 173 mA
      • Discuss
    • 10. Using the mesh current method, find the branch current, IR1, in the above figure.


    • Options
    • A. 115 mA
    • B. 12.5 mA
    • C. 12.5 A
    • D. 135 mA
      • Discuss

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