32. A mesh is a loop that contains ____ number of loops within it.
A. 1
B. 2
C. 3
D. no loop
Answer: D
A loop is a closed path. A mesh is defined as a loop that does not contain any other loops within it.
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33. Consider the circuit shown below. The number mesh equations that can be formed are?
A. 1
B. 2
C. 3
D. 4
34. In the figure shown below, the current through loop 1 be I1 and through loop 2 be I2, then the current flowing through the resistor R2 will be?
A. I1
B. I2
C. I1 − I2
D. I1 + I2
35. If there are 5 branches and 4 nodes in the graph, then the number of mesh equations that can be formed is?
A. 2
B. 4
C. 6
D. 8
36. Consider the circuit shown in the figure. Find voltage Vx.
A. 1
B. 1.25
C. 1.5
D. 1.75
37. Consider the circuit shown below. Find the current I1.
A. 3.3
B. 4.3
C. 5.3
D. 6.3
38. Consider the following figure. Find the current I2 (A)
A. 1.7
B. 2.6
C. 3.6
D. 4.6
39. Consider the following figure. Find the current I3 (A)
A. 4
B. 4.7
C. 5
D. 5.7
40. Find the current through the R2 resistor.
A. 3
B. 3.25
C. 3.5
D. 3.75
Answer: D
Applying mesh analysis
5(I1) + 2(I1 − I2) = 10
10(I2) + 2(I2 − I1) + 40 = 0.
On solving
I1 = 0.5A, I2 = − 3.25A.
So current through R2 resistor is 0.5 − ( − 3.25) = 3.75 A
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