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
ch4aika [34]
3 years ago
7

A 45-mH inductor is connected in series with a 60-Ω resistor through a 15-V dc power supply and a switch. If the switch is close

d at t = 0 s, what is the current after 7.0 ms?
Physics
1 answer:
egoroff_w [7]3 years ago
4 0

Answer:

The current is 0.248 A

Explanation:

Given that,

Inductor L= 45\times10^{3}\ H

Resistance R= 60\Omega

Voltage = 15 volt

Time t =7.0\times10^{-3}\ sec

We need to calculate the current

Using formula of current

I=\dfrac{V}{R}(1-e^{\dfrac{-R}{L}}t)

Where, V = voltage

R = resistance

L = inductance

T = time

Put the value into the formula

I=\dfrac{15}{60}(1-e^{\dfrac{-60}{45\times10^{3}}}\times7\times10^{-3})

I=0.248\ A

Hence, The current is 0.248 A.

You might be interested in
PLEASE HELP ME I NEED IT!!
Alla [95]

Answer:

d

Explanation:

7 0
3 years ago
Read 2 more answers
If the distance between two objects decreased, what would happen to the force of gravity between them?
evablogger [386]

Answer: A- It would increase

Explanation:

According to the law of universal gravitation:

F=G\frac{m_{1}m_{2}}{r^2}  

Where:  

F is the module of the attraction force exerted between both objects

G is the universal gravitation constant.  

m_{1} and m_{2} are the masses of both objects  

r is the distance between both objects

As we can see, the gravity force is directly proportional to the mass of the bodies or objects and inversely proportional to the square of the distance that separates them.

In other words:

<h2>If we decrease the distance between both objects, the gravitational force between them will increase.  </h2>
6 0
3 years ago
Read 2 more answers
The organelle responsible for breaking down food into energy is the
kompoz [17]
C.) Mitochondria is the answer...
7 0
3 years ago
Read 2 more answers
HELPPP IM DESPERATE
damaskus [11]

the first one cuz I know

5 0
3 years ago
Which of the following is an agent of socialization?
Verdich [7]
<span>Socialization is a way of interacting to other people and in return, gaining insights as well as part of learning process. Above choices are all agents of socialization so that is letter D: all of the above. A grandparent can teach you lessons of his experiences in life since he is older than you. Television is a medium to be able to know how to interact with people by basing on it and learning with whatever is shown. School is an area where different people of different ages convene and learn together. This give you the opportunity to learn from different personalities of ages and experiences.</span>
4 0
3 years ago
Read 2 more answers
Other questions:
  • If steam enters a turbine at 600°K and is exhausted at 200°K, calculate the efficiency of the engine.
    13·2 answers
  • PLEASE HELP, I am desperate. This part of the presentation I am completely lost with. It is STEP 6, I got the rest finished.
    12·1 answer
  • What would be the result if Earth's unique atmosphere did not exist?
    10·2 answers
  • Greg is in a bike race. At mile marker four (out of ten), his speed was measured at 13.5 mph.
    13·2 answers
  • How much heat is needed to vaporize 33.3 grams of ethyl alcohol at its boiling point of 78.0°C? The latent heat of vaporization
    10·2 answers
  • An image that cannot be obtained on a screen is called​
    14·1 answer
  • The Mariana trench is located in the Pacific Ocean at a depth of about 11 000 m below the surface of the water. The density of s
    9·1 answer
  • An object of mass 0.50 kg is transported to the surface of Planet X where the object's weight is measured to be 20 N. The radius
    14·1 answer
  • True or false the refraction of a wave is how many wavelengths pass a fixed point each second
    7·2 answers
  • 6th grade science pls help
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!