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
alexandr402 [8]
1 year ago
13

n Fig. 30.11, R = 15.0 Ω and the battery emf is 6.30 V. With switch S2 open, switch S1 is closed. After several minutes, S1 is o

pened and S2 is closed. (a) At 2.00 ms after S1 is opened, the current has decayed to 0.280 A. Calculate the inductance of the coil. (b) How long after S1 is opened will the current reach 1.00% of its original value?
Physics
1 answer:
Alex_Xolod [135]1 year ago
3 0

The inductance of the coil  and time is mathematically given as

  • L=0.1035H
  • t=12.8 ms

<h3>What is the inductance of the coil and How long after S1 is opened will the current reach 1.00% of its original value?</h3>

Generally, the equation for Current is  mathematically given as

\begin{aligned}I(t) &=I_{0} e^{\frac{-t}{\tau}} \\&I(t) =I_{0} e^{\frac{-R t}{L}}\end{aligned}

Therefore

L=\frac{-t R}{\ln \left(\frac{I}{I_{0}}\right)}

Hence, the Maximum current is,

\begin{aligned}I_{0} &=\frac{\varepsilon}{R}=\frac{6.30}{15} \\&I_{0} =0.42 \end{aligned}

Thus,

L &=\frac{-\left(0.280 * 10^{-3})(13.0)}{\ln \left(0.280}{0.42})} \\

L=0.1035H

b)

In conclusion, Time taken after S1 is opened is,

(0.01) I_{0}=I_{0} e^{\frac{-t}{\tau}}

Time constant is,

\tau=\frac{L}{R}\\\\\tau=\frac{0.042}{15} \\

\tau=0.0028s

(0.01) I_{o} &=I_{o} e^{\frac{-t}{(0.00028)}} \\\\t=-\ln (0.01)(0.0028) \\\\t=-(-4.605)(0.0033) \\\\t=0.01289s

t=12.8 ms

Read more about inductance

brainly.com/question/18575018

#SPJ1

You might be interested in
What is the displacement of an object during a specific unit of time?
azamat
Speed = distance / time
3 0
3 years ago
Read 2 more answers
How does a mirror affect the path of light?
yulyashka [42]

Light rays change direction when they hit a mirror. The phenomenon is known as reflection. Light rays travels in a straight light. They strike the surface of the mirror at a particular angle called incident angle. It is the angle between the ray and normal at the point of contact. The rays leaves the surface making the same angle with the normal called reflection angle but in different direction.

8 0
3 years ago
Which will produce a magnetic field?
Yanka [14]

Answer:

Answer:

a magnet

3 0
3 years ago
The formation of condensation on a glass of ice water causes the ice to melt faster than it would otherwise. If 8.55 g of conden
SSSSS [86.1K]

Answer:

m = 62.14 g

Explanation:

Energy used to melt the ice is the energy released by the condensation of the water forms on the glass

so here we have

energy for the condensation of water is given as

let mass of water condensed = m

E = m_1 L_f

now the energy of vaporization is given as

E = m_2 L_v

here we know that

L_f = 79.8 kCal/kg

L_v = 580 k Cal/kg

Now we have

8.55 \times 580 = m \times 79.8

m = 62.14 g

3 0
3 years ago
You are leaving for a party at your cousin’s house in a city that is 150 km away. You will travel at an average rate of 50 km/hr
choli [55]
3 hours, because for every 50 km equals one hour 150 divided into 50 equals 3
5 0
3 years ago
Read 2 more answers
Other questions:
  • Felipe drives his car at a velocity of 28 m/s. He applies the brake, which slows the vehicle down at a rate of 6.4 m/s2 and caus
    14·2 answers
  • A 0.12 kg block on a horizontal frictionless surface is attached to a spring whose force constant is 330 N/m. The block is pulle
    7·1 answer
  • Which of the following cannot be determined from the spectrum of a star?
    7·2 answers
  • What is electrons ? explain it function<br>​
    13·2 answers
  • Students are given some resistors with various resistances a battery with internal resistance
    5·2 answers
  • An unbalanced force of 500 N is applied to a 75 kg object. What is the acceleration of the object?
    14·2 answers
  • A ray of white light moves through the air and strikes the surface of water in a beaker. The index of refraction of the water is
    5·1 answer
  • Two different electrical devices have the same power consumption, but one is meant to be operated on 120-V AC and the other on 2
    8·1 answer
  • A spring, with a spring constant of 4000 N/m, is oriented horizontally, and compressed by 10cm. When released, the spring launch
    9·1 answer
  • Which statement best explains how a planet affects the orbit of a comet as the comet passes by the planet?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!