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.
Homework Answers
Add Answer to:
An AC power supply is connected to a capacitor of capacitance 7.5 uF
A resistor and capacitor are connected in series to a power supply of 50 Volts. The...
A resistor and capacitor are connected in series to a power supply of 50 Volts. The resistor has a value of 30000 ohms and the Capacitor is initially uncharged. After a time of 16.0 seconds, the capacitor is charged 72% fully charged. a) What is the capacitance of capacitor in this circuit? b) What is the time constant of this system? c) What is the current through the resistor at t= 20.0 seconds? d) What is the potential difference across...
Circuit Analysis in Electrical Engineering 4. A resistor and a capacitor are connected in series across a 270-V ac supply. When the frequency is 40 Hz, the current flowing in the circuit is 6.25...
Circuit Analysis in Electrical Engineering 4. A resistor and a capacitor are connected in series across a 270-V ac supply. When the frequency is 40 Hz, the current flowing in the circuit is 6.25 A. When the frequency is 50 Hz, the current flowing in the circuit is 7.5 A Calculate the resistance and capacitance of the resistor and capacitor respectively. (99.97 μF; 16.798 Ω) If the resistor and capacitor are now connected in parallel across the 60-Hz supply, calculate...
5. A resistance 250, inductance 200mH, and capacitance 1 uF capacitor are all connected in series,...
5. A resistance 250, inductance 200mH, and capacitance 1 uF capacitor are all connected in series, and across the combination is connected to a 500V, 60 Hz supply. Calculate (a) the current flowing, (b) the phase difference between the supply voltage and current, (c) the voltage across the coil and the capacitor. 6. An 300-uF capacitor is connected in series with 3.25-MQ resistance across a 300-V supply. The switch is closed. Calculate a) Time constant of the circuit b) Initial...
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.
A 11.8 uF capacitor is fully charged across a 12.0 V battery. The capacitor is then...
A 11.8 uF capacitor is fully charged across a 12.0 V battery. The capacitor is then disconnected from the battery and connected across an initially uncharged capacitor, C. The resulting voltage across each capacitor is 2.66 V. What is the capacitance C?
. 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.
A 11.0-uF capacitor is charged by a 145.0-V power supply, then disconnected from the power and...
A 11.0-uF capacitor is charged by a 145.0-V power supply, then disconnected from the power and connected in series with a 0.280-mH inductor. Calculate the energy stored in the inductor at t = 1.30 ms. Express your answer with the appropriate units.
2. A capacitor of capacitance 330 uF is connected in series with a resistance R and a 4.5 V batte...
2. A capacitor of capacitance 330 uF is connected in series with a resistance R and a 4.5 V battery via a switch. At t0, the switch is closed charging the capacitor. Figure below shows difference (AV) in the circuit as a function of time. 0.8 (a) Determine the value of R used in the circuit. 0.6 s 0.4 0.2 0.0 10.0 20.0 30.0 Time (ms) (b) Determine the energy stored in the capacitor at t 2. 3. For the...
A 1.40 uF capacitor is connected as in the figure to an ac generator with εm...
A 1.40 uF capacitor is connected as in the figure to an ac generator with εm = 35.0 V. What is the amplitude of the resulting alternating current if the frequency of the emf is (a)0.978 kHz and (b)8.77 kHz? CCVC
Calculate the rms currents for an ac source is given by v(t) = V0 sinωt, where...
Calculate the rms currents for an ac source is given by v(t) = V0 sinωt, where V0 = 100V and ω = 200π rad/s when connected across (a) a 20-μF capacitor, (b) a 20-mH inductor, and (c) a 50-Ω resistor. Answers should be: 0.89, 5.6, 1.4 (A)
Circuit Analysis in Electrical Engineering 4. A resistor and a capacitor are connected in series across a 270-V ac supply. When the frequency is 40 Hz, the current flowing in the circuit is 6.25 A. When the frequency is 50 Hz, the current flowing in the circuit is 7.5 A Calculate the resistance and capacitance of the resistor and capacitor respectively. (99.97 μF; 16.798 Ω) If the resistor and capacitor are now connected in parallel across the 60-Hz supply, calculate...
5. A resistance 250, inductance 200mH, and capacitance 1 uF capacitor are all connected in series, and across the combination is connected to a 500V, 60 Hz supply. Calculate (a) the current flowing, (b) the phase difference between the supply voltage and current, (c) the voltage across the coil and the capacitor. 6. An 300-uF capacitor is connected in series with 3.25-MQ resistance across a 300-V supply. The switch is closed. Calculate a) Time constant of the circuit b) Initial...
. 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.
A 11.0-uF capacitor is charged by a 145.0-V power supply, then disconnected from the power and connected in series with a 0.280-mH inductor. Calculate the energy stored in the inductor at t = 1.30 ms. Express your answer with the appropriate units.
2. A capacitor of capacitance 330 uF is connected in series with a resistance R and a 4.5 V battery via a switch. At t0, the switch is closed charging the capacitor. Figure below shows difference (AV) in the circuit as a function of time. 0.8 (a) Determine the value of R used in the circuit. 0.6 s 0.4 0.2 0.0 10.0 20.0 30.0 Time (ms) (b) Determine the energy stored in the capacitor at t 2. 3. For the...
A 1.40 uF capacitor is connected as in the figure to an ac generator with εm = 35.0 V. What is the amplitude of the resulting alternating current if the frequency of the emf is (a)0.978 kHz and (b)8.77 kHz? CCVC
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago