Loop And Node Analyses(Electrical Engineering > Branch ) Questions and Answers

Question 1. Find branch current IR2.
  1.    5.4 mA
  2.    -5.4 mA
  3.    113.0 mA
  4.    119.6 mA
Explanation:-
Answer: Option C. -> 113.0 mA
Question 2. The branch current method uses.
  1.    Kirchhoff's voltage and current laws
  2.    Thevenin's theorem and Ohm's law
  3.    Kirchhoff's current law and Ohm's law
  4.    The superposition theorem and Thevenin's theorem
Explanation:-
Answer: Option A. -> Kirchhoff's voltage and current laws
Question 3. What is the voltage drop across R1?
  1.    850 mV
  2.    7.82 V
  3.    9.18 V
  4.    918 mV
Explanation:-
Answer: Option B. -> 7.82 V
Question 4. In assigning the direction of branch currents.
  1.    The directions are critical
  2.    The directions are not critical
  3.    They must point into a node
  4.    They must point out of a node
Explanation:-
Answer: Option B. -> The directions are not critical
Question 5. The first row of a certain determinant has the numbers 3 and 5. The second row has the numbers 7 and 2. The value of this determinant is
  1.    31
  2.    -31
  3.    39
  4.    -29
Explanation:-
Answer: Option D. -> -29
Question 6. Second-order determinants are evaluated by subtracting the signed cross-products.
  1.    True
  2.    False
Explanation:-
Answer: Option B. -> False
Question 7. The mesh method can be applied to circuits with any number of loops.
  1.    True
  2.    False
Explanation:-
Answer: Option A. -> True
Question 8. Find the node voltage VA.
  1.    518 mV
  2.    5.18 V
  3.    9.56 V
  4.    956 mV
Explanation:-
Answer: Option B. -> 5.18 V
Question 9. A loop current is an actual current in a branch.
  1.    True
  2.    False
Explanation:-
Answer: Option B. -> False
Question 10. What is the current through R2?
  1.    3.19 A
  2.    319 mA
  3.    1.73 A
  4.    173 mA
Explanation:-
Answer: Option D. -> 173 mA
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