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This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Network Theory Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
1. |
The complete solution of current obtained by substituting the values of c1 and c2 in the following equation is? |
A. | i = e-37.5t(c1cos1290t + c2sin1290t) + 0.7cos(500t + π/4 + 88.5⁰). |
B. | i = e-37.5t(0.49cos1290t – 1.3sin1290t) + 0.7cos(500t + 133.5⁰) |
C. | i = e-37.5t(0.49cos1290t – 1.3sin1290t) – 0.7cos(500t + 133.5⁰) |
D. | i = e-37.5t(0.49cos1290t + 1.3sin1290t) – 0.7cos(500t + 133.5⁰) |
E. | i = e-37.5t(0.49cos1290t + 1.3sin1290t) + 0.7cos(500t + 133.5⁰) |
Answer» E. i = e-37.5t(0.49cos1290t + 1.3sin1290t) + 0.7cos(500t + 133.5⁰) | |
2. |
The value of the c2 in the following equation is? |
A. | i = e-37.5t(c1cos1290t + c2sin1290t) + 0.7cos(500t + π/4 + 88.5⁰). |
B. | 2.3 |
C. | -2.3 |
D. | 1.3 |
E. | -1.3 |
Answer» D. 1.3 | |
3. |
The value of the c1 in the following equation is? |
A. | i = e-37.5t(c1cos1290t + c2sin1290t) + 0.7cos(500t + π/4 + 88.5⁰). |
B. | -0.5 |
C. | 0.5 |
D. | 0.6 |
E. | -0.6 |
Answer» C. 0.5 | |
4. |
In the circuit shown below, the switch is closed at t = 0. Applied voltage is v (t) = 400cos (500t + π/4). Resistance R = 15Ω, inductance L = 0.2H and capacitance = 3 µF. Find the complete solution of current. |
A. | i = e-37.5t(c1cos1290t + c2sin1290t) + 0.7cos(500t + π/4 + 88.5⁰) |
B. | i = e-37.5t(c1cos1290t + c2sin1290t) + 0.7cos(500t – π/4 + 88.5⁰) |
C. | i = e-37.5t(c1cos1290t + c2sin1290t) – 0.7cos(500t – π/4 + 88.5⁰) |
D. | i = e-37.5t(c1cos1290t + c2sin1290t) – 0.7cos(500t + π/4 + 88.5⁰) |
Answer» B. i = e-37.5t(c1cos1290t + c2sin1290t) + 0.7cos(500t – π/4 + 88.5⁰) | |
5. |
In the circuit shown below, the switch is closed at t = 0. Applied voltage is v (t) = 400cos (500t + π/4). Resistance R = 15Ω, inductance L = 0.2H and capacitance = 3 µF. Find the particular solution. |
A. | ip = 0.6cos(500t + π/4 + 88.5⁰) |
B. | ip = 0.6cos(500t + π/4 + 89.5⁰) |
C. | ip = 0.7cos(500t + π/4 + 89.5⁰) |
D. | ip = 0.7cos(500t + π/4 + 88.5⁰) |
Answer» E. | |
6. |
In the circuit shown below, the switch is closed at t = 0. Applied voltage is v (t) = 400cos (500t + π/4). Resistance R = 15Ω, inductance L = 0.2H and capacitance = 3 µF. Find the complementary current. |
A. | ic = e-37.5t(c1cos1290t + c2sin1290t) |
B. | ic = e-37.5t(c1cos1290t – c2sin1290t) |
C. | ic = e37.5t(c1cos1290t – c2sin1290t) |
D. | ic = e37.5t(c1cos1290t + c2sin1290t) |
Answer» B. ic = e-37.5t(c1cos1290t – c2sin1290t) | |
7. |
In the circuit shown below, the switch is closed at t = 0. Applied voltage is v (t) = 400cos (500t + π/4). Resistance R = 15Ω, inductance L = 0.2H and capacitance = 3 µF. Find the roots of the characteristic equation. |
A. | -38.5±j1290 |
B. | 38.5±j1290 |
C. | 37.5±j1290 |
D. | -37.5±j1290 |
Answer» E. | |