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Repeat Problem 49 if the 500-kΩ resistor of Figure 6-89 is replaced with a 2-MΩ resistor.
Problem 49
A voltmeter having a 1-MΩ internal resistance is used to measure the indicated voltage in the circuit shown in Figure 6-89.
a. Determine the voltage reading which will be indicated by the meter.
b. Calculate the voltmeter's loading effect when used to measure the indicated voltage.
In a digital audio system, a digital to analog converter reproduces the analog voltage levels represented by the digital samples. This signal is inherently jagged with sharp transitions between each sample.
an electric motor operates at 220V rms ,60 Hz, draws 20A rms, and has a power factor of 0.75 lagging. a) what is average power absorbed by the motor b) what value capacitor should be connected in parallel with the motor to give a power factor of 1
input voltage to an amplifier is: Vi(t)=0.1*cons(2000*pi*t+30) and the output voltage is: Vo(t)=10*sin(2000*pi*t+15) Find the complex voltage gain of the amplifier at f = 1kHz and express the magnitude of the gain in decibels.
Assuming that the secondary is open-circuited and that the primary is connected to a 13.8-kV source, calculate the magnitude and phase angle (with respect to the high-voltage source) of the voltage at the secondary terminals.
A shipment of 100 items undergoes a selective inspection. 5 items are selected at random from the shipment and they are tested. What is the probability that the shipment will be rejected given that is contains 2% defective items
explain the use of the Op Amp as a difference amplifier and as a comparator. What are the distinctions between the ways each one is used.
The department of energy projects that between the years 1995 and 2010, the united states will need to build new power plants to generate an additional 150,000MW of electricity to meet the increasing demand for electric power.
At time zero the system is excited with 0.1Hz cosine wave ofamplitude 2. What is the output amplitude in steady state. How long does the system require toreach the steady state. h(t)=100e -100t +100e -50tsin(50√(3)*t)/√(3) -100e -50tcos(50√(3)*t)
3. Which of the following is not an advantage of FETs over BJTs in RF amplifier usage. A) Their input impedance does not load down the Q of the circuit preceding the FET stage. B) The availability of dual gate FETs provides an isolated injection poin..
Use Source Transformation to find V1 and V2?
Consider a vector field, F(r,theta,phi)= ar*cos^2(theta)/r^2 for the volume V of a spherical shell, centered at the origin,with inner and outer radii 1 and 2 meters. a) Evaluate triple integral delta.F dv over v. b) Calculate also the closed surface ..
Demonstrate that the peak critical heat flux occurs at approximately one-third the critical pressure (Pc = 221 bars). Since all common fluids have this characteristic, suggest what coordinates should be used to plot critical heat flux-pressure val..
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