An ultracapacitor is a relatively new capacitor design that delivers a energy at a constant voltage....
An ultracapacitor is a relatively new capacitor design that delivers a energy at a constant voltage. A 5.0V ultracapacitor storing 42,750J of energy supplies 1.5A to a circuit. After 1.0h or operation, the energy remaining in the ultracapacitor is closest to:
| A. |
41kJ |
|
| B. |
27kJ |
|
| C. |
16kJ |
|
| D. |
43kJ |
Homework Answers
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An ultracapacitor is a relatively new capacitor design that
delivers a energy at a constant voltage....
A generator delivers an AC voltage of the form Δv = (90.0 V)sin(70πt) to a capacitor....
A generator delivers an AC voltage of the form Δv = (90.0 V)sin(70πt) to a capacitor. The maximum current in the circuit is 0.900 A. Find the following. (a) rms voltage of the generator V (b) frequency of the generator Hz (c) rms current A (d) the reactance Ω (e) the value of the capacitance μF
A capacitor in an RC circuit is charged by a battery to an initial voltage of...
A capacitor in an RC circuit is charged by a battery to an initial voltage of 10V. The capacity is then disconnected from the battery and connected, at time t=0, in series with a 1MOhm resistor. At t=300 s the voltage across the capacitor has decreased to .1V. (a) Find the value of the capacitance. (b) Calculate the initial energy of the capacitor. (c) Calculate the final energy of the capacitor. (d) The difference between the answers to (b) and...
QUESTION 7 aas A capacitor is storing energy of 3 Joules with a voltage of 50...
QUESTION 7 aas A capacitor is storing energy of 3 Joules with a voltage of 50 volts across its terminals. A second identical capacitor of the same value is storing ènergy of 1 Joule. What is the voltage across the terminals of the second capacitor? tea ndca o a. 140 (V) b. 28.87 (V) C70.70 (v) d. 57 (V) QUESTION 8
For the following circuit: At t=0 the voltage drop on the capacitor is and points s...
For the following circuit:
At t=0 the voltage drop on the capacitor is and
points s and 1 are connected.
1) Which of the following statement describe what will happen in
the circuit ? (select one)
a. The capacitor will be charged to a final voltage of , with I
being the current in the circuit
b. The capacitor will disconnect the circuit so no current will
exist
c. The voltage will oscillate at an angular frequency of
d. The...
Learning Goal: To analyze an RC circuit to determine the initial voltage across a capacitor, the...
Learning Goal: To analyze an RC circuit to determine the initial voltage across a capacitor, the time constant, and the expression for the natural response of the capacitor voltage, and then to find other circuit quantities such as current,voltage, power, or energy. The natural response of an RC circuit is the response of the capacitor voltage to the sudden removal of a DC source. When this occurs, the capacitor releases its stored energy Figure < 10121〉 t 0 V. Figure...
The capacitor shown is charged with 3 coulombs. What is the time constant in this circuit?...
The capacitor shown is charged with 3 coulombs.
What is the time constant in this circuit? Please show
work/explain
a. 15s
b. 50s
c. 60s
d. 100s
e. 300s
The voltage difference on either one of the resistors after 50s
is closest to? Please explain.
a. 0.6 V
b. 0.36 V
c. 0.22 V
d. 0.18 V
e. 0.11 V
100 31012 5 F
Determine the value of the voltage across the capacitor, Vc, 1 time constant after the sources...
Determine the value of the
voltage across the capacitor, Vc, 1 time constant after the sources
changes (at t=0).
In the circuit below, determine the value of the voltage across the capacitor, vc, 1 time constant after the sources change (at t=0). Hint: You do not need the value of C or R1 to answer this question. 25u(t) V c ) 100u(-+) V
A circuit has an ac voltage source and a resistor and capacitor connected in series. There is no inductor.
A circuit has an ac voltage source and a resistor and capacitor connected in series. There is no inductor. The ac voltage source has voltage amplitude 0.900 kV and angular frequency w = 20.0 rad/s. The voltage amplitude across the capacitor is 0.500 kV. The resistor has resistance R= 0.300 kΩ. Part A What is the voltage amplitude across the resistor? Part B What is the capacitance C of the capacitor? Part C Does the source voltage lag or lead the current? Part D What is the average...
In the circuit shown, find the voltage of the C=66 μμF capacitor. Find the energy stored...
In the circuit shown, find the voltage of the C=66 μμF
capacitor. Find the energy stored on the 64 μμF capacitor.
In the circuit shown, find the voltage of the C-66 μF capacitor 15 V 64 μF Answer: Choose. 7 Find the energy stored on the 64 μF capacitor. Answer: Choose.. ▼
For the circuit shown, find the following: a) v(0+), the voltage across the capacitor right after...
For the circuit shown, find the following: a) v(0+), the voltage across the capacitor right after the switch closes. b) v), the voltage across the capacitor after the switch has been closed for a long time. c) v(T), the voltage across the capacitor after one time constant. 2. 3 S2 I(t) 12 V+ 6 Ω 0.5 F u(t) 3. For the circuit above, write the differential equation for t > 0.
QUESTION 7 aas A capacitor is storing energy of 3 Joules with a voltage of 50 volts across its terminals. A second identical capacitor of the same value is storing ènergy of 1 Joule. What is the voltage across the terminals of the second capacitor? tea ndca o a. 140 (V) b. 28.87 (V) C70.70 (v) d. 57 (V) QUESTION 8
For the following circuit:
At t=0 the voltage drop on the capacitor is and
points s and 1 are connected.
1) Which of the following statement describe what will happen in
the circuit ? (select one)
a. The capacitor will be charged to a final voltage of , with I
being the current in the circuit
b. The capacitor will disconnect the circuit so no current will
exist
c. The voltage will oscillate at an angular frequency of
d. The...
Learning Goal: To analyze an RC circuit to determine the initial voltage across a capacitor, the time constant, and the expression for the natural response of the capacitor voltage, and then to find other circuit quantities such as current,voltage, power, or energy. The natural response of an RC circuit is the response of the capacitor voltage to the sudden removal of a DC source. When this occurs, the capacitor releases its stored energy Figure < 10121〉 t 0 V. Figure...
The capacitor shown is charged with 3 coulombs.
What is the time constant in this circuit? Please show
work/explain
a. 15s
b. 50s
c. 60s
d. 100s
e. 300s
The voltage difference on either one of the resistors after 50s
is closest to? Please explain.
a. 0.6 V
b. 0.36 V
c. 0.22 V
d. 0.18 V
e. 0.11 V
100 31012 5 F
Determine the value of the
voltage across the capacitor, Vc, 1 time constant after the sources
changes (at t=0).
In the circuit below, determine the value of the voltage across the capacitor, vc, 1 time constant after the sources change (at t=0). Hint: You do not need the value of C or R1 to answer this question. 25u(t) V c ) 100u(-+) V
In the circuit shown, find the voltage of the C=66 μμF
capacitor. Find the energy stored on the 64 μμF capacitor.
In the circuit shown, find the voltage of the C-66 μF capacitor 15 V 64 μF Answer: Choose. 7 Find the energy stored on the 64 μF capacitor. Answer: Choose.. ▼
For the circuit shown, find the following: a) v(0+), the voltage across the capacitor right after the switch closes. b) v), the voltage across the capacitor after the switch has been closed for a long time. c) v(T), the voltage across the capacitor after one time constant. 2. 3 S2 I(t) 12 V+ 6 Ω 0.5 F u(t) 3. For the circuit above, write the differential equation for t > 0.
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