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
Bad White [126]
3 years ago
6

the increase of current when 15 V is applied to 10000ohm rheostat which is adjusted to 1000ohm value​

Engineering
1 answer:
Anastasy [175]3 years ago
4 0
Given data:
•) applied voltage = 15 V
•). Resistance = 1000 ohm

Required:
•). The magnitude of current= ?

•••••••••••••SOLUTION•••••••••••••

We can find the relation ship between current, voltage and resistance with the help of Ohms law.

According to ohms law;

V= IR.

Rearranging the above equation;

I= V/ R

Putt the values in the above equation; we get

I= 15V/ 1000ohm

I = 0.015 A( ampere)

••••••••••••••• CONCLUSION•••••••

The value of the current would be 0.15 ampere when Resistance is equal to 1000 and that of Voltage is equal to 15 V.
You might be interested in
Investiga por que esta simple actividad puede ayudar a mejorar las condiciones ambientales que tu comunidad?
skad [1K]

Creo que por simple actividad hablas de reciclar no?

Espero que sea de ayuda (:

Permite ahorrar energía de forma significativa. Es menos costoso reciclar un material que fabricarlo desde cero, como ocurre por ejemplo con el vidrio.

Reciclar ayuda a evitar la explotación de los recursos naturales. El reciclaje hace posible que los materiales originales puedan ser aprovechados con un nuevo uso, sin que sea necesario volver a usar recursos naturales para fabricarlos.

Se evitan los métodos de extracción de recursos naturales, que son invasivos y contaminantes. El reciclaje permite no sustraer nueva materia prima para fabricación y se puede simplemente reciclar la materia existente.

Se reduce la contaminación, proporcionando una atmósfera más limpia. Reciclando ayudamos a reducir el daño producido al medio ambiente.

Se conserva el medio ambiente ya que permite reducir la cantidad de desechos sólidos que llegan a los vertederos. Esto hace posible que los vertederos ocupen menos espacio e incluso puedan llegar a cerrarse, evitando el impacto negativo que causan sobre el medio ambiente.

Permite alargar la vida útil de los vertederos, ya que se llenan a un menor ritmo evitando que se abran más vertederos.

Si depositamos los desechos que generamos en el contenedor correspondiente para que sean reciclados se reducen los costes de recolección y clasificación de los residuos, ya que son las personas las que ayudan a realizar dicha labor.

En algunos centros de reciclaje ofrecen una compensación económica por llevar material reciclable, como latas y botellas de plástico, por lo que puedes obtener un pequeño ingreso extra reciclando.

7 0
3 years ago
A reversible process and an irreversible process both have the same________ between the same two states. a. Internal energy b. W
Vlad1618 [11]

Answer:

a) Internal energy

Explanation:

As we know that internal energy is a point function so it did not depends on the path ,it depends  at the initial and final states of process.All point function property did not depends on the path.Internal energy is a exact function.

Work and heat is a path function so these depend on the path.They have different values for different path between two states.Work and heat are in exact function.

We know that in ir-reversible process entropy will increase so entropy will be different for reversible and ir-reversible processes.

5 0
3 years ago
A. Calculate the fraction of atom sites that are vacant for lead at its melting temperature of 327°C (600 K). Assume an energy f
NISA [10]

Answer:

a. Fraction of Atom = 2.41E-5 when T = 600K

b. Fraction of Atom = 5.03E-10 when T = 298K

Explanation:

a.

Given

T = Temperature = 600K

Qv = Energy for formation = 0.55eV/atom

To calculate the fraction of atom sites, we make use of the following formula

Nv/N = exp(-Qv/kT)

Where k = Boltzmann Constant = 8.62E-5eV/K

Nv/N = exp(-0.55/(8.62E-5 * 600))

Nv/N = 0.000024078672493307

Nv/N = 2.41E-5

b. When T = 298K

Nv/N = exp(-0.55/(8.62E-5 * 298))

Nv/N = 5.026591237904E−10

Nv/N = 5.03E-10 ----- Approximated

6 0
4 years ago
A bar of 75 mm diameter is reduced to 73mm by a cutting tool while cutting orthogonally. If the mean length of the cut chip is 7
barxatty [35]

Answer:

r=0.31

Ф=18.03°

Explanation:

Given that

Diameter of bar before cutting = 75 mm

Diameter of bar after cutting = 73 mm

Mean diameter of bar d= (75+73)/2=74 mm

Mean length of uncut chip = πd

Mean length of uncut chip = π x 74 =232.45 mm

So cutting ratio r

Cutting\ ratio=\dfrac{Mean\ length\ of cut\ chip}{Mean\ length\ of uncut\ chip}

r=\dfrac{73.5}{232.45}

  r=0.31

So the cutting ratio is 0.31.

As we know that shear angle given as

tan\phi =\dfrac{rcos\alpha }{1-rsin\alpha }

Now by putting the values

tan\phi =\dfrac{rcos\alpha }{1-rsin\alpha }

tan\phi =\dfrac{0.31cos15 }{1-0.31sin15 }\

  Ф=18.03°

So the shear angle is 18.03°.

4 0
4 years ago
Your family has asked you to estimate the operating costs of your clothes dryer for the year. The clothes dryer in your home has
trasher [3.6K]

Answer:

The costs to run the dryer for one year are $ 9.03.

Explanation:

Given that the clothes dryer in my home has a power rating of 2250 Watts, and to dry one typical load of clothes the dryer will run for approximately 45 minutes, and in Ontario, the cost of electricity is $ 0.11 / kWh, to calculate the costs to run the dryer for one year the following calculation must be performed:

1 watt = 0.001 kilowatt

2250/45 = 50 watts per minute

45 x 365 = 16,425 / 60 = 273.75 hours of consumption

50 x 60 = 300 watt = 0.3 kw / h

0.3 x 273.75 = 82.125

82.125 x 0.11 = 9.03

Therefore, the costs to run the dryer for one year are $ 9.03.

8 0
3 years ago
Other questions:
  • What software do you sue for design and the rapid prototyping machine?
    11·1 answer
  • The maximum compressive load experienced by the same truss member would occur when the live load is __________. The magnitude of
    9·1 answer
  • A hypothetical accumulator processor uses one of the following 16-bit instruction formats, depending on the instruction.(a) (10
    6·1 answer
  • Complete the following sentence. The skills and content of several subject areas were combined to form a new field known as a me
    12·2 answers
  • A model shows a city located between a warm ocean and next to coastal mountains. Which statement best describes average weather
    8·2 answers
  • 35 points and brainiest is it A, B, C, D
    10·2 answers
  • Which of the following explains why truck drivers are required to take a rest period after a certain period of driving?
    8·2 answers
  • 5.<br> Which of the following is considered ideal conditions?
    14·1 answer
  • Question #4
    15·1 answer
  • 6. During some actual expansion and compression processes in piston–cylinder devices, the gases have been
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!