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
timurjin [86]
3 years ago
8

Discuss what in particular makes the light bulb a non-ohmic resistor. Specifically, how does temperature affect resistance? Can

thermal expansion explain the non-ohmic behavior? If not, describe what happens at the atomic level that accounts for the non-ohmic property
Physics
1 answer:
bagirrra123 [75]3 years ago
8 0

Answer:

the loss of energy due to the Joule effect is the cause of the non-ohmic characteristic of the bulb

Explanation:

A resistance is formed of some type of metal, in a light bulb it is Tungsten, which for low current is a resistance that complies with the ohm law.

When the value of the current is increased the shock of the electors creates a Joule effect, which heats the metal, these shocks are due to atomic imperfections of the structure, this heating creates a loss of energy of the system that causes the characteristic to be lost linear between the voltage and the current, since the total energy balance must be preserved.

An approximate measure of the energy that is emitted is given by Stefan's law.

In short, the loss of energy due to the Joule effect is the cause of the non-ohmic characteristic of the bulb

You might be interested in
An x-ray beam of wavelength 1.4×10−10m makes an angle of 20° with a set of planes in a crystal(the Bragg angle)causing first ord
Gnom [1K]

Answer:

Second order line appears at 43.33° Bragg angle.

Explanation:

When there is a scattering of x- rays from the crystal lattice and interference occurs, this is known as Bragg's law.

The Bragg's diffraction equation is :

n\lambda=2d\sin\theta      .....(1)

Here n is order of constructive interference, λ is wavelength of x-ray beam, d is the inter spacing distance of lattice and θ is the Bragg's angle or scattering angle.

Given :

Wavelength, λ = 1.4 x 10⁻¹⁰ m

Bragg's angle, θ = 20°

Order of constructive interference, n =1

Substitute these value in equation (1).

1\times1.4\times10^{-10} =2d\sin20

d = 2.04 x 10⁻¹⁰ m

For second order constructive interference, let the Bragg's angle be θ₁.

Substitute 2 for n, 2.04 x 10⁻¹⁰ m for d and 1.4 x 10⁻¹⁰ m for λ in equation (1).

2\times1.4\times10^{-10} =2\times2.04\times10^{-10} \sin\theta_{1}

\sin\theta_{1} =0.68

<em>θ₁ </em>= 43.33°

4 0
2 years ago
?????Help please?????
Sindrei [870]

The correct selections are C, C, B, D, A, B, and A .

6 0
3 years ago
List the following in order from largest to smallest:
LiRa [457]
Organisms, organs, tissues, cell ....

a more specific answer would be:
organism, organ system, organ, tissue, cell, atom
4 0
3 years ago
Help please asap due 20 minutes please help me ​
Finger [1]
Did you turn it in yet?
4 0
3 years ago
Explain why the drill bit gets hot when it's turning in the wood
alexgriva [62]
The friction between the two objects creates heat.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Most of the ________ deposits in Virginia are located in the Appalachian Plateau and the Valley and Ridge provinces. A) coal B)
    8·1 answer
  • To describe velocity you need to know?
    15·2 answers
  • The graph below plots four main sequence stars according to their luminosity and temperature.
    10·2 answers
  • a 2.964 kilogram truck strikes a fence at 7.00 meters/second and comes to a stop in 1.9 seconds. what was the average force acti
    12·1 answer
  • The scientific method is? (apex)
    12·2 answers
  • A steel ball of mass m falls from a height h
    11·1 answer
  • Calculate the moment of inertia and the rotational kinetic energy for the following objects spinning about a central axis (in un
    7·1 answer
  • Whats an astral projection
    15·2 answers
  • A baseball is thrown off of a building with an initial velocity of 17 m/s and lands 2.3 seconds later. How tall is the building?
    9·1 answer
  • All of the following are kinds of forces except thrust acceleration gravity friction
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!