Electronic Devices and Circuits

Method of Analysis

Question 1
Marks : +2 | -2
Pass Ratio : 100%
What will be the value of V1 in the following circuit?
0.4 Vs
1.5 Vs
0.67 Vs
2.5 Vs
Explanation:
Apply nodal analysis, V1 = Vs(4/6 + 1/3)/(1/6 + 1/3 + 1/6) = 1.5 Vs.
Question 2
Marks : +2 | -2
Pass Ratio : 100%
What will be the value of V2 in the following circuit?
0.5 V
1.0 V
1.5 V
2.0 V
Explanation:
V2/20 + V2+10/30 = 0.5 V or V2 = 2.0 V.
Question 3
Marks : +2 | -2
Pass Ratio : 100%
What will be the value of I1 in the following circuit?
0.6 A
0.5 A
0.4 A
0.1 A
Explanation:
By nodal analysis,
Question 4
Marks : +2 | -2
Pass Ratio : 100%
What will be the value of i1 in the following circuit?
4 A
3 A
6 A
5 A
Explanation:
3 – 5i1 – 12 => i1 = 3A.
Question 5
Marks : +2 | -2
Pass Ratio : 100%
What will be the value of i1 in the following circuit?
0.6 A
2.1 A
1.3 A
1.7 A
Explanation:
By nodal analysis computing v1 and v2 where
Question 6
Marks : +2 | -2
Pass Ratio : 100%
What will be the value of Va in the following circuit?
-11 V
11 V
3 V
-3 V
Explanation:
By current division, we get 4A and 1A in resistors 2ohm and 3ohm respectively, applying Kvl in the bottom loop, we have Va = 2(4) + 3(1) = 11V.
Question 7
Marks : +2 | -2
Pass Ratio : 100%
What will be the value of i1 in the following circuit?
1 mA
1.5 mA
2 mA
2.5 mA
Explanation:
Applying kvl in the rightmost bottom loop, we have
Question 8
Marks : +2 | -2
Pass Ratio : 100%
What will be the value of V1 in the following circuit?
120 V
-120 V
90 V
-90 V
Explanation:
-V1/60 – V1/60 + 6 = 9 or V1 = -90 V.
Question 9
Marks : +2 | -2
Pass Ratio : 100%
What will be the value of Va in the following circuit?
4.33 V
4.09 V
8.67 V
8.18 V
Explanation:
(Va – 10)/4 + Va/2 = 4 or Va = 8.67 V.
Question 10
Marks : +2 | -2
Pass Ratio : 100%
What will be the value of i1 in the following circuit?
20 mA
15 mA
10 mA
5 mA
Explanation:
45 = 2ki1 + 500(i1 + 15m) => i1 = 15 mA.