Linear Circuit Analysis 1st Semester (Fall 24)
Course Code: TRS 604110 (Avionics Engineering)
TWS 604110 (Electrical Engineering)
CLO Domain Taxonomy Level PLO
1 Apply the circuit laws to solve DC circuits and Cognitive C3 1
analyse the concepts of DC Circuits
2 Analyse various Operational Amplifiers Circuits. Cognitive C4 1
3 Analyse for transients in RC and RL circuits for DC Cognitive C4 1
Assignment 9
CLO – 3 Max Marks = 10 Due Date: 21 Jan 2025
Solve the following problems on your registers, before the due date.
Then explain the solution steps individually before the instructor, for evaluation.
Finally, the solved assignments will be kept safe by the students for record.
Capacitors
–3t
1 If the voltage across a 7.5-F capacitor is 2te V, find the current and power.
2 A 50-µF capacitor has energy (t) = 10 cos2 377t J. Determine the current through the
capacitor.
3 A current of 4 sin 4t amp flows through a 5-F capacitor. Find the voltage v(t) across the
capacitor given that v(0) = 1 V.
4 The voltage across a 4-µF capacitor is shown. Find the current waveform.
5 At t = 0, the voltage across a 25-mF capacitor is 10 V. Calculate the voltage across the
capacitor for t > 0, if 5t mA current flows through it.
Series and Parallel Capacitors
6 Series-connected 20-pF and 60-pF capacitors are placed in parallel with a series
connected 30-pF and 70-pF capacitors. Determine the equivalent capacitance.
7 Two capacitors (25-µF and 75-µF) are connected to a 100-V source. Find the energy
stored in each capacitor if they are connected in: (a) parallel (series)
8 The equivalent capacitance at terminals a-b
in the circuit is 30-µF, Calculate the values
of C.
9 Determine the equivalent capacitance in each of the following circuits.
Inductors
–t/2
10 The current through a 10-mH inductor is 10 e A. Find the voltage and the power at t =
3 sec.
11 An inductor has a linear change in current from 10 mA to 100 mA in 2 ms and induces a
voltage of 160 mV. Calculate the value of the inductor.
12 The current through a 12-mH inductor is 4 sin 100t A. Find the voltage across the
inductor for 0 < t < /200 sec, and energy stored at t = /200 sec.
13 0, 𝑡<0
The current through a 40-mH inductor is: 𝑖(𝑡) = { .
𝑡𝑒 −2𝑡 𝐴, 𝑡>0
Find the voltage v(t).
14 The voltage across a 200-mH inductor is given by: 𝑣(𝑡) = 3𝑡 2 + 2𝑡 + 4, V for t > 0.
Determine the current i(t) through the inductor. Assume that i(0) = 1 A.
15 The voltage across a 2-H inductor is 20(1 − 𝑒 −2𝑡 ) V. If the initial current through the
inductor is 0.3 A, find the current and energy stored in the inductor at t = 1 sec.
16 The current through 5-mH inductor is
shown. Determine the voltage across the
inductor at t = 1, 3 and 5 m sec.
17 Find vc, iL and energy stored in the
capacitor and inductor in the given circuit
under DC conditions.
Series and Parallel Inductors
18 Find the equivalent inductance of the given
circuit. Assume all inductors are 10 mH.
19 Determine Leq at terminals a-b of the given
circuit.
20 An energy-storage network consists of series-connected 16-mH and 14-mH inductors in
parallel with a series-connected 24-mH and 36-mH inductors. Calculate the equivalent
inductance.
(Dr Zafrullah)
Course Instructor
