Homework Answers
200 Fair capacitor is connected to a power supply, the energy stored in the capacitor is...
200 Fair capacitor is connected to a power supply, the energy stored in the capacitor is 900 x 10% ]. While the capacitor is kept connected to the power supply, a slab of dielectric is inserted that completely fills the space bere the plates. This increases the stored energy by 180 x 10-5 J. What is the potential difference between the capacitor plates after the dielectrie is inserted?
A capacitor and a resistor that are in series are initially connected to a power supply...
A capacitor and a resistor that are in series are initially connected to a power supply with 22 volts. The power supply is then cut-off and the capacitor begins to discharge through the resistor. At t = 20 s, the voltage across the capacitor drops to 7 volts. What is the resistance of the resistor, in mega ohms (MΩ) if the capacitance, C = 7 μF ? Please give your answer in two decimal places.
Question 2- An alternating current power supply is connected as shown in the figure to a...
Question 2- An alternating current power supply is connected as shown in the figure to a resistor, a capacitor, and an inductor. The power supply provides a voltage given by ε(t)-fo . cos(ωt). a) Make a phasor diagram and draw the voltage and current phasors for the resistor, capacitor, and inductor. (Be sure the phase relations between each phasor is clear, and be sure to label all phasors.) b) Use your diagram to find an equation for lo (the amplitude...
An AC power supply is connected to a capacitor of capacitance 7.5 uF
An AC power supply is connected to a capacitor of capacitance 7.5 uF. At time t=0 the power supply is switched on and starts providing a time-dependent voltage v(t)=V0cos(ωt) across the capacitor, where V0=5.3 V and ω=374 rad/s. The capacitor is initially uncharged. Part ( a) Find the current, in milliamperes with its sign, through the capacitor at time t=1.5 s.
32. A variable power supply is connected to a coil and an ammeter, and the time...
32. A variable power supply is connected to a coil and an ammeter, and the time dependence of the ammeter reading is shown. A nearby coil is connected to a voltmeter. Ammeter reading Power supply Ammeter time Which of the following graphs correctly shows the time dependence of the voltmeter reading? Voltmeter reading Voltmeter reading ime time Voltmeter reading Voltmeter reading time time Voltmeter reading time
. A parallel-plate capacitor of capacitance 100 HF is connected to a power supply of 200...
. A parallel-plate capacitor of capacitance 100 HF is connected to a power supply of 200 V. A dielectric slab of dielectric constant 5 is now inserted into the gap between the plates. (a) Find the extra charge flown through the power supply and the work done by the supply. (b) Find the change in the electrostatic energy of the electric field in the capacitor.
(8 points) In the quitessential electric power system in the figure, a voltmeter reads the same...
(8 points) In the quitessential electric power system in the figure, a voltmeter reads the same at the source and at the load, 125 volts. At the source, an ammeter reads 40 amps. The source sees a inductive circuit. The cable (feeder) has a resistance of 0.0631302 ohms and a reactance of 1.2046 ohms. (a) What is the power factor angle, in degrees, at the source; (b) What is the active power delivered by the source; (C) What is the...
An ac power supply produces a maximum voltage delta V_max = 100 V. This power supply...
An ac power supply produces a maximum voltage delta V_max = 100 V. This power supply is connected to a 24.0-ohm resistor, and the current and resistor voltage are measured with an ideal ac ammeter and voltmeter as shown in the sketch below: What does each meter read? An ideal ammeter has zero resistance and an ideal voltmeter has infinite resistance. (70.7 V;2.95 A)
A 17.0-μF capacitor is charged by a 130.0-V power supply, then disconnected from the power and...
A 17.0-μF capacitor is charged by a 130.0-V power supply, then disconnected from the power and connected in series with a 0.260-mH inductor. Calculate the oscillation frequency of the circuit. Calculate the energy stored in the capacitor at time t=0 ms (the moment of connection with the inductor). Calculate the energy stored in the inductor at t = 1.30 ms.
A capacitor C is connected to a power supply that operates at a frequency f and...
A capacitor C is connected to a power supply that operates at a frequency f and produces an rms voltage ΔV. What is the maximum charge that appears on either of the capacitor plates? (Use any variable or symbol stated above as necessary.) Qmax =
200 Fair capacitor is connected to a power supply, the energy stored in the capacitor is 900 x 10% ]. While the capacitor is kept connected to the power supply, a slab of dielectric is inserted that completely fills the space bere the plates. This increases the stored energy by 180 x 10-5 J. What is the potential difference between the capacitor plates after the dielectrie is inserted?
Question 2- An alternating current power supply is connected as shown in the figure to a resistor, a capacitor, and an inductor. The power supply provides a voltage given by ε(t)-fo . cos(ωt). a) Make a phasor diagram and draw the voltage and current phasors for the resistor, capacitor, and inductor. (Be sure the phase relations between each phasor is clear, and be sure to label all phasors.) b) Use your diagram to find an equation for lo (the amplitude...
32. A variable power supply is connected to a coil and an ammeter, and the time dependence of the ammeter reading is shown. A nearby coil is connected to a voltmeter. Ammeter reading Power supply Ammeter time Which of the following graphs correctly shows the time dependence of the voltmeter reading? Voltmeter reading Voltmeter reading ime time Voltmeter reading Voltmeter reading time time Voltmeter reading time
. A parallel-plate capacitor of capacitance 100 HF is connected to a power supply of 200 V. A dielectric slab of dielectric constant 5 is now inserted into the gap between the plates. (a) Find the extra charge flown through the power supply and the work done by the supply. (b) Find the change in the electrostatic energy of the electric field in the capacitor.
(8 points) In the quitessential electric power system in the figure, a voltmeter reads the same at the source and at the load, 125 volts. At the source, an ammeter reads 40 amps. The source sees a inductive circuit. The cable (feeder) has a resistance of 0.0631302 ohms and a reactance of 1.2046 ohms. (a) What is the power factor angle, in degrees, at the source; (b) What is the active power delivered by the source; (C) What is the...
An ac power supply produces a maximum voltage delta V_max = 100 V. This power supply is connected to a 24.0-ohm resistor, and the current and resistor voltage are measured with an ideal ac ammeter and voltmeter as shown in the sketch below: What does each meter read? An ideal ammeter has zero resistance and an ideal voltmeter has infinite resistance. (70.7 V;2.95 A)
Most questions answered within 3 hours.
-
Calculate the change in the Gibbs energy of the system for the
following processes: a) 6.0...
asked 2 minutes ago -
A solution is prepared by dissolving 11.60 g of a mixture of
sodium carbonate and sodium...
asked 11 minutes ago -
1. Mini Case Study: Suppose that, in the future, most jobs will
be bid upon by...
asked 14 minutes ago -
After reading the Primary Care scenario in the Allied Health
Community, what could have been implemented...
asked 7 minutes ago -
Plantinga argues for the view that there is no solution to the
problem of moral evil....
asked 9 minutes ago -
For this Discussion, you examine a case study of
hearing-impaired children who developed their own language...
asked 14 minutes ago -
At the beginning of the year, Palermo Brothers, Inc., purchased
a new plastic water bottle making...
asked 12 minutes ago -
You could argue that even though Rockefeller clearly had
enormous market power (90% of the market)...
asked 13 minutes ago -
The moment of inertia of a disk rotating about its axis of
symmetry is Icm=1/2MR^2
The...
asked 21 minutes ago -
When using a relational database what makes data
formatting so important and critical to the functions...
asked 32 minutes ago -
The following temperatures show the (fictional) daily low
measured at O'Hare airport every January 1st from...
asked 51 minutes ago -
Your friend is interested in the characteristics of fast tree
planters. He searched through the records...
asked 59 minutes ago