Frequency Response of RL and RC Circuits
To observe the effects of frequency on R-L and R-C AC circuit parameters.
1 Resistor 5.1K
1 Inductor 200 mH
1 Capacitance 4.7nF
1 Function Generator (AC Power Suppl
RC TIME CONSTANTS
To observe the time constants and charging behavior of capacitors in RC circuits.
1 DC Power Supply
2 Capacitors (100uF)
2 Resistors (100K)
1) For Figure 7.1 compute
WHEATSTONE BRIDGE CIRCUITS
To study the Wheatstone Bridge Circuit and its use in measuring an unknown resistance.
1 DC Power Supply
1 1 k Potentiometer
8 Resistors (220, 390, 470, 560, 680, 3-
OHMS LAW and Kirchhoffs Laws
Resistance, current, and voltage measurements
To become familiar with the applications of Ohms Law, Kirchhoffs
voltage and current laws, voltage and current divider rules, and the
AND POWER TRANSFER
To study and verify Thevenins Theorem and to determine the condition for maximum
1 DC Power Supply
5 Resistors (560, 1.2k)
1 Resistance Decade Box
Electrical and Computer Engineering Department
Parks College of Engineering, Aviation, and Technology
Saint Louis University
Electrical Engineering Lab
Section 36 Tuesdays & Thursdays
Prerequisites: ECE-2001 (Co-
Introduction To Electrical Engineering LAB (ECE 2002)
OHMs Law and Kirchoffs Laws
Resistance, Current, and Voltage
Zeyi Ding and Seth Near
Date of LAB: 05/25/2017
Date of Report: 05/30/2017
Purpose of the Experiment
P 7.2-2 The voltage, v(t), across a capacitor and current, i(t), in that capacitor adhere to the
passive convention. Determine the current, i(t), when the capacitance is C = 0.125 F and the
voltage is v(t) = 12 cos(2t + 30) V.
P 8.3-1 The circuit shown in Figure P 8.3-1 is
at steady state before the switch closes at time
t = 0. The input to the circuit is the voltage of the
voltage source, 12 V. The output of this circuit is
the voltage across the ca
Determine the values of i2, i4, v2, v3, and v6 in Figure P 3.2-2.
Apply KCL at node a to get
2 = i2 + 6 = 0 i2 = 4 A
Apply KCL at node b to get
3 = i4 + 6 i4 = -3 A
Apply KVL to the loop consisting of elements
0 t 2
2 2 t 4
P 1.2-4 The current in a circuit element is i (t )
where the units of current are A
1 4 t 8
0 8 t
and the units of time are s. Determine the total charge that has entered a circuit element for t 0.
where the units of charge
Source transformation at left; equivalent resistor for parallel 6 and 3 resistors:
Equivalents for series resistors, series voltage source at left; series resistors, then source
transformation at top:
KCL at node 1:
1 0 5 v v 20
KCL at node 2:
v 3 v 2 v 40
KCL at node 3:
3 v 5 v 30
Solving gives v1 = 2 V, v2 = 30 V and v3 = 24 V.
KCL at node
A linear element has voltage v and current i as
shown in Figure P 2.2-3a. Values of the current i and
corresponding voltage v have been tabulated as shown in
Figure P 2.2-3b. Represent the element by an equation that
P 6.3-1 Determine the value of voltage
measured by the voltmeter in Figure P 6.3-1.
Answer: 4 V
Figure P 6.3-1
(checked using LNAP 8/16/02)
Find vo and io for the circuit of Figure P 6.3-2.
Figure P 6.3-2
Section 13-4: Resonant Circuits
For a parallel RLC circuit with R = 10 k, L = 1/120 H, and C = 1/30 F, find 0, Q,
1, 2, and the bandwidth BW.
Answer: 0 = 60 krad/s, Q = 20, 1 = 58.519 krad/s, 2 = 61.519 krad/s, and BW = 3 krad/s
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Alleah - Seller
Jozelle - Teller/ Seller/ Attendant
Adrian - Father Wang/ Seller
Bryan - Ba Wang
Edward - Bae Wang
Jeremy - Seller
Kent - Seller
Narrator: There was once a family who lived, the Wang Family. Their mother, M
Series and Parallel Circuits
A series circuit is a circuit in which resistors are arranged in a chain, so the current has only one
path to take. The current is the same through each resistor. The total resistance of th
A circuit contains two resistors connected in series across 100 Volts. The circuit current flow is
2 Amperes. One of the resistor R1 have known value of 10 ohms. You wish to know the
resistance of the entire circuit, the value of the second resistor R2 an
Magnetic fields are produced by electric currents, which can be
macroscopic currents in wire
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