Hall Ticket No Question Paper Code: AEE002
INSTITUTE OF AERONAUTICAL ENGINEERING
(Autonomous)
B.Tech II Semester End Examinations (Regular/Supplementary) May, 2018
Regulation: IARE R16
ELECTRICAL CIRCUITS
Time: 3 Hours (Common to ECE EEE) Max Marks: 70
Answer ONE Question from each Unit
All Questions Carry Equal Marks
All parts of the question must be answered in one place only
UNIT I
1. The Voltage wave form shown in Figure 1 is applied to a pure capacitor of 1F. Obtain the current
and energy wave forms in the capacitor.
Figure 1
If the 12
resistor draws a current of 1A as shown in the Figure apply KCL and KVL to
determine the value of resistance R.
Figure 2
2. Differentiate following elements with examples. i. Active and Passive elements ii. Linear and
Non-linear elements.
Use a series of source transformations to find the power associated with 6V source for the circuit
shown in Figure3.
Figure 3
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UNIT II
3. For the circuit shown in Figure use Mesh analysis, determine the current through 8
resistor.

Figure 4
Determine the equivalent resistance across AB for the network shown in Figure 5.
Figure 5
4. Use Nodal analysis to determine the current through 40Ω resistor in the circuit given in Figure
6.
Figure 6
Draw a linear oriented graph, tree and cotree for the circuit in Figure 7. Develop cut set matrix
and tie-set matrix.
Figure 7
UNIT III
5. Find the RMS value, average value, peak factor and form factor for the waveform shown in
Figure 8.
Page 2 of 4
Figure 8
Define active and reactive power. Mention their units. Also explain the importance of power
factor in an AC circuit.
6. Determine the apparent power, true power and reactive power for the circuit shown in Figure 9.

Figure 9
An inductor 0.1H with a resistance of 5
is connected in series with a 25
resistor. A 100V RMS
supply is applied to the circuit. The phase angle of current is to be adjusted to 600 by adjusting
the supply frequency. Determine the appropriate frequency and current in the circuit. Represent
the phasor diagram.
UNIT IV
7. An inductance of L Henry with internal resistance of R 5
is connected in parallel with the
series combination of a capacitor having reactance -j12
and resistance of 10
. Determine the
value of inductor to maintain the circuit at resonance.
Find the voltage across the -j6
capacitor for the network shown in Figure 10.
Figure 10
8. In a RLC series circuit, the inductance is variable. The circuit is connected to a 200V, 50Hz supply.
The maximum current through the circuit is 0.3144A and the volatge across the capaciatnec
is 300V. Find L and C Values.
Explain the concept of self inductance and mutual inductance and also write the expression for
coefficient of coupling in mutually induced coils.
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UNIT V
9. Determine the current through AB in the circuit shown in Figure 11, by using super position
theorem.
Figure 11
For the circuit shown in Figure-12, determine the load current IL by using Norton's theorem.

Figure 12
10. For the circuit shown in Figure 13, compute the current flowing through 10
by using Millman's
theorem.
Figure 13
Verify the Reciprocity theorem with respect to AB for the circuit shown in Figure 14.
Figure 14