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
Rufina [12.5K]
3 years ago
8

The voltage across a parallel-plate capacitor with area A = 820 cm2 and separation d = 5 mm varies sinusoidally as V = (14 mV)co

s(170t), where t is in seconds. Find the displacement current between the plates. (Use the following as necessary: t. Do not use other variables, substitute numeric values. Assume that Id is in amperes. Do not include units in your answer.)
Physics
1 answer:
shutvik [7]3 years ago
6 0

Answer:

I_d = -3.454*10^{-10} \ \ (sin ( \ 170 \ t))

Explanation:

The displacement current I_d is given by the expression;

I_d = \epsilon _o \frac{d \phi _ E }{dt}

where

\phi _ E = A.E \\ \\ \\\phi _E = A. \frac{V}{d} \\ \\ \\\phi _E = \frac{A}{d}(14*10^{-3})(cos \ 170 \ t ) \\ \\ \\\phi _E = \frac{820*10^{-4}}{5*10^{-3}} * (14*10^{-3})(cos \ 170 \ t ) \\ \\ \\\phi _E = 2296*10^{-4} (cos \ 170 \ t)

I_d = \epsilon _o \frac{d \phi _ E }{dt}

I_d = 8.85*10^{-12}(2296*10^{-4})(-170)(sin(170 \ t))

I_d = -3.454*10^{-10} \ \ (sin  ( \ 170 \ t))

You might be interested in
What is the difference between a theory and a law?
algol [13]

A theory is a system of ideas that isn't exactly proven to be true fully. A law is a description of whatever scientific phenomena you're studying. All you need to know is a law describes, and a theory explains.

5 0
3 years ago
You have to run 2.2 miles in track. How far is this in feet? Note: There are
Romashka [77]

Answer: B

Explanation: This can be easily done by inputting 5280 * 2.2.

3 0
3 years ago
Read 2 more answers
A mass on a horizontal surface is connected to the spring and pulled to the right along the surface stretching the spring by 25
solniwko [45]

Answer:

320 N/m

Explanation:

From Hooke's law, we deduce that

F=kx where F is applied force, k is spring constant and x is extension or compression of spring

Making k the subject of formula then

k=\frac {F}{x}

Conversion

1m equals to 100cm

Xm equals 25 cm

25/100=0.25 m

Substituting 80 N for F and 0.25m for x then

k=\frac {80}{0.25}=320N/m

Therefore, the spring constant is equal to 320 N/m

3 0
4 years ago
ELECTROMAGNETIC FIELDS PLAN AN INVESTIGATION LAB REPORT FOR EDG.!!!!! WORTH 100 POINTS????????
tekilochka [14]

Answer:ummm ok

Explanation:I really don’t get it but ok

3 0
3 years ago
As the Sun ages, what will happen to life here on Earth? Why?
Burka [1]

Answer:

As the Sun ages it will enter another stage of stellar evolution where it's atmosphere begins to inflate.As the Sun heats up and expands, life on Earth will become increasingly difficult. Long before the Sun becomes a red giant some 4 or 5 billion years from now, our planet will be rendered uninhabitable.

~I HOPE IT HELPS♡

5 0
3 years ago
Other questions:
  • What are the two measurements necessary for calculating average speed?
    9·2 answers
  • Neo and Morpheus's masses have gained a velocity (not equal to zero) which means their momentum is now _____ .
    15·2 answers
  • A 0.150 kg ball on the end of a 1.10 m long cord (negligible mass)is swung in a vertical circle..
    11·2 answers
  • The part of the mantle called the ___ is made out of soft rock that bends like plastic
    12·1 answer
  • A 20 kg mass is dropped from a tall rooftop and accelerates at 9.8 m/s2. What is the weight of the dropped object?
    13·2 answers
  • 1. When two atoms of the same nonmetal react, they often form a(an)
    15·1 answer
  • The drawings show three examples of the force with which someone pushes against a vertical wall. In each case the magnitude of t
    5·2 answers
  • Lab report of experimrnt to find the series resonance of acceptor circuit and parallel resonance of rejector circuit in RLC?
    13·1 answer
  • List the planet name and position from the Sun for each one (1, 2, 3)
    11·1 answer
  • You and your friend are pushes hard against a stationary wall. If you push 3 times harder than your friend, then the amount of w
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!