Q.1
The first row of a certain determinant has the numbersandThe second row has the numbers 3 andThe value of this determinant is
  • 18
  • 50
  • 32
  • –32
Q.2
Find I4I1 + 4I2 = 2 6I1 + 7I2 = 4
  • 0.5 A
  • 50 mA
  • –0.5 A
  • –50 mA
Q.3
Find I4I1 + 4I2 = 2 6I1 + 7I2 = 4
  • 1 A
  • –1 A
  • 100 mA
  • –100 mA
Q.4
The mesh current method is based on Kirchhoff's current law.
  • True
  • False
Q.5
The expansion method for evaluating determinants is
  • Better than any other method
  • Good for only one determinant
  • More flexible than the cofactor method
  • Good for second- and third-order determinants
Q.6
Third-order determinants are evaluated by the expansion method or by the cofactor method.
  • True
  • False
Q.7
Generally, the mesh current method results in fewer equations than the node voltage method.
  • True
  • False
Q.8
The branch current method is based on Kirchhoff's voltage law and Kirchhoff's current law.
  • True
  • False
Q.9
When assigning branch currents, you need not be concerned with the direction you choose.
  • True
  • False
Q.10
Using the mesh current method, find the branch current, IRin the above figure.
  • 115 mA
  • 12.5 mA
  • 12.5 A
  • 135 mA
Q.11
The node voltage method is based on Kirchhoff's voltage law.
  • True
  • False
Q.12
Second-order determinants are evaluated by subtracting the signed cross-products.
  • True
  • False
Q.13
What is the current through R2?
  • 3.19 A
  • 319 mA
  • 1.73 A
  • 173 mA
Q.14
A loop current is an actual current in a branch.
  • True
  • False
Q.15
The mesh method can be applied to circuits with any number of loops.
  • True
  • False
Q.16
Find branch current IR2.
  • 5.4 mA
  • -5.4 mA
  • 113.0 mA
  • 119.6 mA
Q.17
What is the voltage drop across R1?
  • 850 mV
  • 7.82 V
  • 9.18 V
  • 918 mV
Q.18
The first row of a certain determinant has the numbers 3 andThe second row has the numbers 7 andThe value of this determinant is
  • 31
  • -31
  • 39
  • -29
Q.19
In assigning the direction of branch currents.
  • The directions are critical
  • The directions are not critical
  • They must point into a node
  • They must point out of a node
Q.20
The branch current method uses.
  • Kirchhoff's voltage and current laws
  • Thevenin's theorem and Ohm's law
  • Kirchhoff's current law and Ohm's law
  • The superposition theorem and Thevenin's theorem
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