1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Kitty [74]
4 years ago
15

A 500 μF capacitor is wired in series with a 5 V battery and a 20 kΩ resistor. What is the voltage across the capacitor after 20

seconds of closing the circuit? Show all calculations in your answer.
Physics
2 answers:
liq [111]3 years ago
3 0

Answer:

Explanation:

It is a question relating to charging of capacitor . For charging of capacitor , the formula is as follows.

Q = CV ( 1 - e^{-\lambda\times t} )

λ = 1/CR , C is capacitance and R is resistance.

= 1/(500 x 10⁻⁶ x 20 x 10³ )

= .1

λ t = .1 x 20

λ t = 2

CV = 500 X 10⁻⁶ X 5

= 2500 X 10⁻⁶ C

Q = 2500 x 10⁻⁶ ( 1 - e^{-2} )

= 2500 x 10⁻⁶ x .86566

= 2161.66 μ C .

voltage = Charge / capacitor

2161.66 μ C  / 500μ F

= 4.32 V

Jlenok [28]3 years ago
3 0

Answer:

Voltage across capacitor after 20 sec is 4.323 volt

Explanation:

We have given capacitance C=500\mu F=500\times 10^{-6}F

Battery voltage V = 5 volt

Resistance R=20kohm=20\times 10^3ohm

Time constant of RC circuit

\tau =RC

\tau =20\times 10^3\times 500\times 10^{-6}=10sec

Time is given t = 20 sec

Capacitor voltage at any time is given by

V_C=V_S(1-e^{\frac{-t}{\tau }})

V_C=5(1-e^{\frac{-20}{10 }})

V_C=5\times 0.864=4.323volt

So voltage across capacitor after 20 sec is 4.323 volt

You might be interested in
An elevator is moving is an upwards
Minchanka [31]

Answer:

The elevator's free-body diagram has three forces, the force of gravity, a downward normal force from you, and an upward force from the tension in the cable holding the elevator. The combined system of you + elevator has two forces, a combined force of gravity and the tension in the cable.

Explanation:

6 0
3 years ago
Please help will make brainliest
kumpel [21]
The Gulf of Mexico
      OR
near trenches, in the middle of the ocean, the continental shelf, and lastly, in the United States
3 0
3 years ago
Read 2 more answers
A river flows at a velocity of 3 km/h relative to the riverbank. A boat moves downstream at a velocity of 15 km/h relative to th
Alexus [3.1K]
15+3=18km/hour
Think about it like this. The boat is going 15 faster than the river, and the river is going 3 faster than the bank, so the boat is going 18 faster than the river bank
3 0
3 years ago
. Imagine that you are standing at the center of a giant bowl of gelatin. What type of wave will you make across the top of the
vichka [17]
Transverse wave as the wave is going up and down no compressions
3 0
3 years ago
what is the answer for the path that one body in space takes as it revolves around another body is called a .......... a orbit,a
salantis [7]
The answer is orbit, we are orbiting the sun as the moon orbits us
6 0
3 years ago
Other questions:
  • what type of wave is produced in a metalic slinky when one of its end is used as a rigid support and the free end a.is compresse
    8·1 answer
  • How do you inhibitors work
    6·1 answer
  • During maneuvers preceding the Battle of Jutland, the British battle cruiser Lion moved as follows (in nautical miles): 1.2 mile
    6·1 answer
  • How do you make a electromagnet repel medal​
    14·1 answer
  • Two points are given in polar coordinates by : (r, θ) = (2.60 m, 50.0°)
    7·1 answer
  • A 1100 kg car pushes a 1800 kg truck that has a dead battery. When the driver steps on the accelerator, the drive wheels of the
    7·1 answer
  • A charged rod is brought near one end of a long, uncharged metal block. Students want to experimentally measure the resulting ch
    6·1 answer
  • what is usually caused when dissimilar materials are rubbed together transferring electrons from one to another
    7·1 answer
  • A dog and a cat sit on a merry-go-round. The dog sits 0.3 m from the center. The cat sits 1.5 m from the center. The whole merry
    6·1 answer
  • A pendulum with a length of 1 meter is released from an initial angle of 15.0° after 1000s its amplitude has been reduced by fri
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!