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
Rina8888 [55]
3 years ago
5

Explain the basic reason of conduction of an electric current through a conductor.​

Physics
2 answers:
stira [4]3 years ago
5 0

Answer:

The electric field can cause the electrons to move around. Through this influence on electrons, we can give a net direction to the motion of the electrons. This is how we generate an electric current

lions [1.4K]3 years ago
5 0

A conductor is an object that conducts electricity through it, the mechanism of conduction of electricity is that, the electrons present in the atoms of the conductor are in rapid motion, and when we apply some potential difference across it by using cell, battery or anything, it causes those electrons to move in a particular direction and we know electrons have negative charge on it which , so the movement of charge ( electrons ) through a conductor causes electric current.

So, from above we conclude that conduction of electric current through a conductor is only possible due to free electrons present in the conductor's atoms.

You might be interested in
PLZ HELP ASAP WILL GIVE BRAINLIEST!!!
igomit [66]

the answer is the forth one treatment of cancer

3 0
3 years ago
Read 2 more answers
10m= (5.0) + (.5)(9.8)(5.0)
Norma-Jean [14]
M=2.45 because you multiply out the equation on the right and divide by 10
8 0
3 years ago
A ball is dropped from a building taking 3sec to fall to the ground. Calculate:
GenaCL600 [577]

Answer:

Vf = 29.4 m/s

h = 44.1 m

Explanation:

Data:

  • Initial Velocity (Vo) = 0 m/s
  • Gravity (g) = 9.8 m/s²
  • Time (t) = 3 s
  • Final Velocity (Vf) = ?
  • Height (h) = ?

==================================================================

Final Velocity

Use formula:

  • Vf = g * t

Replace:

  • Vf = 9.8 m/s² * 3s

Multiply:

  • Vf = 29.4 m/s

==================================================================

Height

Use formula:

  • \boxed{h=\frac{g*(t)^{2}}{2}}

Replace:

  • \boxed{h=\frac{9.8\frac{m}{s^{2}}*(3s)^{2}}{2}}

Multiply time squared:

  • \boxed{h=\frac{9.8\frac{m}{s^{2}}*9s^{2}}{2}}

Simplify the s², and multiply in the numerator:

  • \boxed{h=\frac{88.2m}{2}}

It divides:

  • \boxed{h=44.1\ m}

What is the velocity when falling to the ground?

The final velocity is <u>29.4 meters per seconds.</u>

How high is the building?

The height of the building is <u>44.1 meters.</u>

3 0
3 years ago
When light of wavelength 240 nm falls on a potassium surface, electrons having a maximum kinetic energy of 2.93 eV are emitted.
olchik [2.2K]

A) We want to find the work function of the potassium. Apply this equation:

E = 1243/λ - Φ

E = energy of photoelectron, λ = incoming light wavelength, Φ = potassium work function

Given values:

E = 2.93eV, λ = 240nm

Plug in and solve for Φ:

2.93 = 1243/240 - Φ

Φ = 2.25eV

B) We want to find the threshold wavelength, i.e. find the wavelength such that the energy E of the photoelectrons is 0eV. Plug in E = 0eV and Φ = 2.25eV and solve for the threshold wavelength λ:

E = 1243/λ - Φ

0 = 1243/λ - Φ

0 = 1243/λ - 2.25

λ = 552nm

C) We want to find the frequency associated with the threshold wavelength. Apply this equation:

c = fλ

c = speed of light in a vacuum, f = frequency, λ = wavelength

Given values:

c = 3×10⁸m/s, λ = 5.52×10⁻⁷m

Plug in and solve for f:

3×10⁸ = f(5.52×10⁻⁷)

f = 5.43×10¹⁴Hz

7 0
3 years ago
In the symbol 4/2He the subscript 4 is the _____for helium and 2 is the subscript for helium
Svet_ta [14]
^{4}_{2}}He
The 4 signifies the atomic weight, and the 2 subscribes the element's atomic number(aka the number of protons in the atom).
7 0
3 years ago
Other questions:
  • Newton's second law states that the force produced by a moving object depends on its mass and acceleration. Which is an example
    9·1 answer
  • The force exerted by electrically changed objects
    8·1 answer
  • E fundamental frequency of an open organ pipe corresponds to the middle c (261.6 hz on the chromatic musical scale). the third r
    15·1 answer
  • A lead ball is dropped into a lake from a diving board 5m above the water . It hits the water with a certain velocity and then s
    14·1 answer
  • How does the vacuum between the inner and outer walls of a thermos bottle limit energy loss through conduction and convection?
    11·1 answer
  • The speed of light in a material is 0.50
    10·1 answer
  • The probability distribution for a
    10·1 answer
  • A coil of resistance 100ohm is placed in a magnetic field of 1mWb the coil has 100 turns and a galvanometer of 400ohm resistance
    13·1 answer
  • Uniformly charged ring with 180 nC/m and radius R= 58 cm. Find the magnitude of the electric field in KN/C at a point P on the a
    10·1 answer
  • I desperately need help with my Physics Exam I am failing this class will mark Brainliest to whoever helps the most: PART 1 (I d
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!