Question

A capacitor with C = 2F has been pre-charged to V0 = 15V voltage. Calculate the...

A capacitor with C = 2F has been pre-charged to V0 = 15V voltage. Calculate the total amount of energy stored in the capacitor.
Then, at time t = 0, the capacitor starts to discharge through a resistor R = 1, i.e. the voltage across the capacitor is changing according to the following formula:
v(t)=Vo e ^(-t/RC)
(a) What is the percentage of energy that discharges from the capacitor in the first three seconds of the process?
(b) Estimate the percentage of discharged energy that is carried by the frequencies between 0Hz and 2Hz.

Engineering   Electrical-Engineering   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Consider a capacitor capacitor C that is discharged through a resistor resistor R as shown in...
Consider a capacitor capacitor C that is discharged through a resistor resistor R as shown in Fig. 28.16 t = RC. A) After how many time constants is the charge on the capacitor a half of its initial value? B. The energy stored in the capacitor decreases over time as the capacitor discharges. After how many times constant is this storage energy a half of its initial value?
A 1.46 mF capacitor with an initial stored energy of 0.240 J is discharged through a...
A 1.46 mF capacitor with an initial stored energy of 0.240 J is discharged through a 1.95 MΩ resistor. (a) What is the initial charge on the capacitor? (b) What is the current through the resistor when the discharge starts? At time t = 909 s, find (c) the potential difference VC across the capacitor, (d) the potential difference VR across the resistor, and (e) the rate at which thermal energy is produced in the resistor.
A 1.43 mF capacitor with an initial stored energy of 0.113 J is discharged through a...
A 1.43 mF capacitor with an initial stored energy of 0.113 J is discharged through a 1.58 MΩ resistor. (a) What is the initial charge on the capacitor? (b) What is the current through the resistor when the discharge starts? At time t = 706 s, find (c) the potential difference VC across the capacitor, (d) the potential difference VR across the resistor, and (e) the rate at which thermal energy is produced in the resistor.
a) An RC circuit, comprising a charged capacitor in series with a resistor and a switch,...
a) An RC circuit, comprising a charged capacitor in series with a resistor and a switch, has R = 7.0 kOhm and C = 2.9 uF (10-6 F). The capacitor is at full voltage Vo at t = 0, when the switch is closed. How long does it take the capacitor to discharge to 1.0 percent of its initial voltage? Give your answer in seconds to 3 sf. b) The magnetic field in a cyclotron is 0.3 T. What must...
A 23-Ω resistor, 58-μF capacitor, and 3.5-mH inductor are connected in series with an AC source...
A 23-Ω resistor, 58-μF capacitor, and 3.5-mH inductor are connected in series with an AC source of amplitude 12 V and frequency 120 Hz. Part (h) With a source voltage of Vsource = V0 cos(2πft), what is the instantaneous voltage, in volts, across the capacitor at time t = 2.25 s? Part (i) What is the amplitude of the voltage drop across the inductor, in volts? Part (j) With a source voltage of Vsource = V0cos(2πft), what is the instantaneous...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT
Active Questions
  • Statistics Discussion: The accuracy of a forecasting technique is evaluated especially using the MSE (mean squared...
    asked 14 minutes ago
  • If the U.S. government manages to close a recessionary gap and achieve potential GDP with fiscal...
    asked 18 minutes ago
  • A block with mass 10kg is on a ramp angled at 20 degrees above the horizontal,...
    asked 18 minutes ago
  • I have a sample of 31 7thgrade girls who took an IQ test.  I calculated the sample...
    asked 26 minutes ago
  • A researcher wishes to estimate the proportion of adults who have​ high-speed Internet access. What size...
    asked 26 minutes ago
  • Brick column in the external corridor of a house, with section size of 440 mm X520...
    asked 27 minutes ago
  • 17.                             Mel has a(n) __________ lien on Ellen’s car after he replaced her clutch. The lien.
    asked 34 minutes ago
  • Jackson Company engaged in the following investment transactions during the current year. Feb 17,Purchased  430 shares of...
    asked 45 minutes ago
  • When might discrimination in the workplace be justified? Might discrimination on the basis of gender or...
    asked 56 minutes ago
  • The strength grade of materials used for brick masonry at a certain site is as follows:...
    asked 1 hour ago
  • Show (prove), from the original definition of the integers, that subtraction of integers is well defined....
    asked 1 hour ago
  • How is polarity of a "bond" different than polarity of a "molecule?" What makes a particular...
    asked 1 hour ago