4 · SERIES AND PARALLEL CIRCUITS 3. Repeat Problem 2 for Figure 4.40 V2 Vi -5...
Learning Goal:
To learn to calculate the equivalent resistance of the circuits
combining series and parallel connections.
Resistors are often connected to each other in electric
circuits. Finding the equivalent resistanceof
combinations of resistors is a common and important task.
Equivalent resistance is defined as the single resistance that can
replace the given combination of resistors in such a manner that
the currents in the rest of the circuit do not change.
Finding the equivalent resistance is relatively straighforward if...
Resistor networks are sometimes used as volume-control circuits.
In this application, they are referred to as resistance
attenuators or pads. A typical fixed-attenuator pad
is shown in the figure. In designing an attenuation pad, the
circuit designer will select the values of R1 and R2 so that the
ratio of vo/vi and the resistance seen by the input voltage source
Rabboth have a specified value. (Figure 1)
Resistors [Ω]
10
100
1.0 k
10 k
100 k
1.0 M
120...
Course and Section cto EXPERIMENT ac series-Parallel Sinusoidal Circuits OBJECTIVES 1. Measure the currents of series-parallel R-L and R-C networks using sensing resistors 2. Demonstrate the Pythagorean relationship between the currents of the networks. 3. Measure the phase angles associated with the currents of the networks. 4. Calculate the input impedance of a parallel network using measured values EQUIPMENT REQUIRED Instruments Resistors 1-10-Q, 470-Ω, l-kM (14.W) Inductors 1-10-mH Capacitors 1-0.02-pF I-DMM 1--Oscilloscope 1-Audio oscillator or function generator 1--Frequency counter (if...
02 +Vo D3 Rgare 18 Circuit for Problem 1 Analysis 1. Copy the circuit of Figure 1.8 and sketch the ow of pesitive curment throughout the entire circuit for o>0. Repeat for n ce 2. Plot two periods of nlt) and s) for each of the thee input wave shown in Figune 17 on page 37 fom output t (a) Feak value, and b) Eflective DC value, also known as RMS value NotTE These and are therefore optional 4. Determine...