Q 1. What is the voltage drop across R1?
(A) 850 mV
(B) 7.82 V
(C) 9.18 V
(D) 918 mV
Answer: Option B
Q 2. The branch current method is based on Kirchhoff’s voltage law and Kirchhoff’s current law.
(A) True
(B) False
Answer: Option A
Q 3. 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
(A) 31
(B) -31
(C) 39
(D) -29
Answer: Option D
Q 4. Generally, the mesh current method results in fewer equations than the node voltage method.
(A) True
(B) False
Answer: Option B
Q 5. What is the voltage drop across R3?
(A) 112 mV
(B) 11.25 V
(C) 180 mV
(D) 1.80 V
Answer: Option C
Q 6. Find branch current IR2.
(A) 5.4 mA
(B) -5.4 mA
(C) 113.0 mA
(D) 119.6 mA
Answer: Option C
Q 7. A loop current is an actual current in a branch.
(A) True
(B) False
Answer: Option B
Q 8. The expansion method for evaluating determinants is
(A) Better than any other method
(B) Good for only one determinant
(C) More flexible than the co-factor method
(D) Good for second- and third-order determinants
Answer: Option D
Q 9. The node voltage method is based on Kirchhoff’s voltage law.
(A) True
(B) False
Answer: Option B
Q 10. In assigning the direction of branch currents,
(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
Answer: Option B
Q 11. The branch current method uses
(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
Answer: Option A
Q 12. When assigning branch currents, you need not be concerned with the direction you choose.
(A) True
(B) False
Answer: Option A
Q 13. Find the node voltage VA.
(A) 6 V
(B) 12 V
(C) 4.25 V
(D) 3 V
Answer: Option C
Q 14. Second-order determinants are evaluated by subtracting the signed cross-products.
(A) True
(B) False
Answer: Option B
Q 15. Find the node voltage VA.
(A) 518 mV
(B) 5.18 V
(C) 9.56 V
(D) 956 mV
Answer: Option B
Q 16. The mesh current method is based on Kirchhoff’s current law.
(A) True
(B) False
Answer: Option B
Q 17. Using the mesh current method, find the branch current, IR1, in the below figure.
(A) 115 mA
(B) 12.5 mA
(C) 12.5 A
(D) 135 mA
Answer: Option A
Q 18. 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
(A) 18
(B) 50
(C) 32
(D) -32
Answer: Option C
Q 19. The mesh method can be applied to circuits with any number of loops.
(A) True
(B) False
Answer: Option A
Q 20. Find I1.
4I1 + 4I2 = 2
6I1 + 7I2 = 4
(A) 0.5 A
(B) 50 mA
(C) -0.5 A
(D) -50 mA
Answer: Option C
Q 21. What is the current through R2?
(A) 3.19 A
(B) 319 mA
(C) 1.73 A
(D) 173 mA
Answer: Option D
Q 22. What is the voltage drop across R2?
(A) 3.5 V
(B) 4.18 V
(C) 1.5 V
(D) 145 mV
Answer: Option B
Q 23. Find I2.
4I1 + 4I2 = 2
6I1 + 7I2 = 4
(A) 1 A
(B) -1 A
(C) 100 mA
(D) -100 mA
Answer: Option A
Q 24. Third-order determinants are evaluated by the expansion method or by the cofactor method.
(A) True
(B) False
Answer: Option A
Q 25. What is the current through R2?
(A) 177 mA
(B) 250 mA
(C) 500 mA
(D) 125 mA
Answer: Option A